Use same method for finding setup dir in get-env-root.sh as get-env.sh

 * litedram changed from 906edf1 to d89b171
    * d89b171 - modules/mt40a1g8: use _L (long) timings <Florent Kermarrec>
    * 2d4fdd1 - litedram/sdram_init/ddr4: disable data mask (not required) <Florent Kermarrec>
    *   0b49cbb - Merge pull request #74 from softerhardware/master <enjoy-digital>
    |\
    | * d65377f - Update to MT40A1G8 that Phillip was successful with <Steve Haynal - VSD Engineering>
    * | f207454 - sdram_init/ddr4: set data mask enable bit <Florent Kermarrec>
    * |   6d09a47 - Merge pull request #73 from softerhardware/master <enjoy-digital>
    |\ \
    | |/
    | * 8e6ad4c - Additional DDR3 and DDR4 SDRAMModules <Steve Haynal - VSD Engineering>
    * | 92df55f - travis: change tests order, comment test_examples for now (need to install the CPU toolchain to travis) <Florent Kermarrec>
    |/
    * 2d4b5ba - core/crossbar: cosmetic <Florent Kermarrec>
    * 429d3a8 - test/common: set rdata_valid_rand_level default value to 0 <Florent Kermarrec>
    * 9ddb3e2 - travis: set python version to 3.6 <Florent Kermarrec>
    *   cc38804 - Merge pull request #72 from EwoutH/master <enjoy-digital>
    |\
    | * 8e01cba - Add Travis CI (#1) <Ewout ter Hoeven>
    |/
    * 031746a - frontend/bist: fix for data_width < 31 (16 bits SDRAMs) <Florent Kermarrec>
    * b4c552a - core/multiplexer: fix command steering for nphases=1 (SDRAM), thanks jfng <Florent Kermarrec>
    * 224a423 - common: allow setting electrical settings with DDR4 <Florent Kermarrec>
    * fc3a192 - phy/gensdrphy: make CAS latency configurable <Florent Kermarrec>
    * b4ee95c - sdram_init: generate ddrx_mr1 only if mr1 is not None <Florent Kermarrec>
    * 2483d25 - test/test_ecc: update <Florent Kermarrec>
    * 6757a14 - frontend/ecc: add error injection capability <Florent Kermarrec>
    * 7eee80d - frontend/ecc: add description, rename dec signal to ded <Florent Kermarrec>
    * 14c6062 - core/crossbar: remove "ROW_COL_BANK" address_mapping (need to be simulated) <Florent Kermarrec>
    * 180b3d2 - modules: adjust MT48LC16M16 timings <Florent Kermarrec>

 * liteeth changed from d7fdcbb to 77fa4bf
    * 77fa4bf - phy: add Kintex7 1000BaseX PHY <Florent Kermarrec>
    * c2d8a46 - phy: add Kintex Ultrascale PHY (copyright M-Labs Ltd) <Florent Kermarrec>

 * litepcie changed from b29c3a0 to 3804c49
    * 3804c49 - frontend/dma: use max_request_size constant for DMAReader <Florent Kermarrec>
    * 3c4eb61 - core/msi: don't wait retransmit timer when irq vector changes <Florent Kermarrec>
    * 4196708 - core/tlp: expose tags/tlp_req/tlp_cmp <Florent Kermarrec>
    * 324ab72 - examples/targets: update crg with new phy (can't use pcie rst) <Florent Kermarrec>
    * 14acea3 - software/linux/kernel/main: fix compilation on 4.11.0 and > kernels (thanks nanortemis) <Florent Kermarrec>
    * b304a7a - software/linux/user: update dump_version <Florent Kermarrec>

 * litescope changed from 1634fa3 to c1d8bdf
    * c1d8bdf - core: fix Trigger flush when disabled <Florent Kermarrec>

 * litevideo changed from 0993a4e to 98e145f
    * 98e145f - Merge pull request #22 from rohitk-singh/regression-fix <enjoy-digital>
    * 411669b - input/clocking/S7Clocking: fix clock-domains when split_clocking=False <Rohit Singh>
    * 17ebc03 - output/hdmi: fix incorrect clock domain in S7HDMIOutEncoderSerializer <Rohit Singh>
    * 1e51823 - driver/hdmi: fix sink connection <Rohit Singh>

 * litex changed from v0.1-679-ga7378a72 to v0.1-710-gaf52842f
    * af52842f - soc_sdram: add use_full_memory_we parameter to allow disabling vivado workaround on small l2 caches <Florent Kermarrec>
    * 32543430 - build/lattice/common/LatticeECXTrellisImpl: add support for nbits == 1 <Florent Kermarrec>
    * aabf042d - soc_sdram: don't generate sdram initialization error message when integrated_main_ram is used <Florent Kermarrec>
    * f51ad436 - build/lattice/common: add LatticeiCE40DDROutput <Florent Kermarrec>
    * 22ccf9dd - platforms/nexys_video: add LPC transceivers pins <Florent Kermarrec>
    * 1d9c5588 - build/sim: add jtagremote module (thanks LamdaConcept) <Florent Kermarrec>
    * 57b8bdd5 - soc/integration/soc_core: allow disabling wishbone timeout <Florent Kermarrec>
    * 05dcb5ca - soc/interconnect/wishbone: increase bus error timeout to 1e6 cycles <Florent Kermarrec>
    * 02708d3b - boards/platform/kc705: add sfp pins (both tx and rx) <Florent Kermarrec>
    * 8344a6a4 - soc/cores/clock: add USIDELAYCTRL <Florent Kermarrec>
    * 7e0dd376 - soc/integration/soc_sdram: round port.data_width/l2_size to nearest power of 2 when it's not the case <Florent Kermarrec>
    * 871b958f - boards/targets: improve presentation <Florent Kermarrec>
    * a318343a - boards/platforms/kcu105: add si570_refclk <Florent Kermarrec>
    * 48312890 - boards/platforms/kc705: use vivado as default programmer <Florent Kermarrec>
    * 1b23890e - soc/cores/clock: allow ClockSignal to be used for clkin <Florent Kermarrec>
    * 387ee041 - build/sim/core: fix coverage <Florent Kermarrec>
    * 482abf9b - build/sim/core: set -Wno-BLKANDNBLK (prevent blocking/non-blocking assigns on a same structure in system verilog) <Florent Kermarrec>
    * 9c5f6547 - build/sim/core: set unroll-count to 256 to prevent Error-BLKLOOPINIT <Florent Kermarrec>
    * f132012d - build/sim: disable Warning-WIDTH <Florent Kermarrec>
    * 7c67bac7 - soc/cores/cpu/vexriscv: set default variant to None in add_sources <Florent Kermarrec>
    * 648015d7 - soc/cores/cpu/vexriscv: move verilog variant selection to add_sources <Florent Kermarrec>
    * 2b5a6f10 - targets/kcu105: use USMMCM <Florent Kermarrec>
    * 86e19e62 - targets: pass speedgrade to S7PLL/S7MMCM <Florent Kermarrec>
    * 2581a003 - soc/cores/clock: add Xilinx Ultrascale PLL/MMCM <Florent Kermarrec>
    * 68e1dfca - boards: avoid duplicating platforms that can be found in migen/litex-buildenv <Florent Kermarrec>
    * 041bf412 - soc/integration/cpu_interface: generate name for Memories in get_csr_header <Florent Kermarrec>
    * 9f5d0cef - utils/litex_server: allow specify uart_baudrate as float <Florent Kermarrec>
    * 2c43f6f7 - targets/ulx3s: use pll for phase shift, enable refresh, memtest ok <Florent Kermarrec>
    * 5ef4d09c - targets/versa_ecp5: use pll for phase shift, enable refresh, memtest ok <Florent Kermarrec>
    * 9c801fbe - soc/cores/clock/ECP5PLL: add basic phase support <Florent Kermarrec>
    * a7b5b9d2 - litex_sim: simplify, change sdram module and enable sdram refresh. <Florent Kermarrec>

 * migen changed from 0.6.dev-229-g5e7c71a to 0.6.dev-241-gafe4405
    * afe4405 - sayma_rtm: add si5324_clkout_fabric and rtm_master_aux_clk <Sebastien Bourdeauducq>
    * 3e6f39a - build/platforms: add upduino_v1 board initial support <msloniewski>
    * 6902e6f - sayma_amc: remove outdated and inaccurate comment <Sebastien Bourdeauducq>
    * 57c4467 - sayma_amc: add gth_clk200 pins <Sebastien Bourdeauducq>
    * 81ba8ca - Updating Pins of de0nanosoc.py Platform file <AlexanderKnapik>
    * 9da60e3 - sayma_rtm: offer 50T option <Sebastien Bourdeauducq>
    * fd23e4f - sayma_rtm: fix si5324_clkin IOSTANDARD <Sebastien Bourdeauducq>
    * ee0a827 - sayma_rtm: add DRTIO satellite signals <Sebastien Bourdeauducq>
    * 8bfbdcb - sayma_rtm: cleanup resource numbers <Sebastien Bourdeauducq>
    * 3d919dd - sayma_amc: add master SATA connector pins <Sebastien Bourdeauducq>
    * 27e65bf - test: use environment variables to determine FPGA toolchain presence <William D. Jones>
    * 5ab577e - Minor bugfix in docstring, missing comma at end of line. <Christian Vogel>

Full submodule status
--
 6def7bc83dfb0338632e06a8b14c93faa6af8879 edid-decode (heads/master)
 a628956da7dc794e6e3c95b31ff9ce3af58bc763 flash_proxies (heads/master)
 d89b17177ae675a493ae100de66f64a759f4b82c litedram (remotes/origin/HEAD)
 77fa4bfb1e452adb1fa34c1b0baede68c056763d liteeth (remotes/origin/HEAD)
 3804c4947adedc6c720e3041e518627b0bf57f78 litepcie (remotes/origin/HEAD)
 b78a73110c0c26cf21bf1410329bf1e78286e929 litesata (heads/master)
 c1d8bdf6f23b1070b8bd2dd277a4708863474148 litescope (remotes/origin/HEAD)
 0a9110f901182a1233cc4e64b6e39175f6784621 liteusb (heads/master)
 98e145fba8c25394e9958bad67e2a457d145127e litevideo (remotes/origin/HEAD)
 af52842fbb250d795d110d79fd2ac91442ad98b9 litex (v0.1-710-gaf52842f)
 afe4405becdbc76539f0195c319367187012b05e migen (0.6.dev-241-gafe4405)