Instead of positional arguments switch sconfig to use getopt and pass the arguments as options in the build system. This will make it easier to add additional options. Change-Id: I431633781e80362e086c000b7108191b5b01aa9d Signed-off-by: Duncan Laurie <dlaurie@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44035 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>