Pull in commit adding signed verstage files for Google mainboards
zork, guybrush, and skyrim.
Change-Id: Ia3024622a622285b7b2a1f4eef88cf0e2927424e
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76946
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>