seabios: upgraded package to upstream

Upgraded sys-firmware/seabios to version 1.7.2.2 on amd64

BUG=chromium:220911
TEST=`emerge qemu` works
TEST=`cbuildbot chromiumos-sdk` works
TEST=`cbuildbot {x86-alex,daisy,lumpy}-release` passes

Change-Id: Ibde32458c584c272c2aca580f6f1f04b28c59f23
Reviewed-on: https://chromium-review.googlesource.com/179216
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
6 files changed