We recently added the --asserts option to set asserts as fatal in abuild but didn't add the flag to getopts, so it gets rejected as an invalid argument. Change-Id: Ic70e9a2bec039955cf62c175875598773ade2d3d Signed-off-by: Martin Roth <martinr@coreboot.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34597 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>