This allows the user to pass one or more arguments through the testsoc script to abuild. Example: testsoc -K SOC_AMD_CEZANNE -a "--skip_unset BOARD_GOOGLE_NIPPERKIN" Signed-off-by: Martin Roth <gaumless@gmail.com> Change-Id: Ic2bc8d656022560ed1eebf6eee0512d3633ebe84 Reviewed-on: https://review.coreboot.org/c/coreboot/+/72766 Reviewed-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>