Integrate gf-emc-test-suite/extend_mv_tests
Commit: seco-ne/tools/gf-emc-test-suite@c6b94949
runtest: Add GPIOs to emission/immunity tests for MV
--
Commit: seco-ne/tools/gf-emc-test-suite@85f38e02
scripts: Add simple GPIO loopback script
This uses gpioset/gpioget to set an output and read back the value from an input.