A few references to "--combo-capable" were left after commit 4bfb36ed68
Change-Id: I6f425db2a8b86d7ad928baee6bc7b07e5190ba37
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/73281
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>