Update cbootimage submodule to upstream master
Updating from commit id 65a6d94:
2019-07-17 17:47:14 -0600 - (Free image buffer on read error)
to commit id 80c499e:
2019-09-19 12:41:46 -0600 - (Correct spelling mistakes)
This brings in 1 new commits:
80c499e Correct spelling mistakes
Change-Id: I0557e7116052e98266ee1d078a078d698232bb2c
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75798
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
b082e9ca36