publish link firmware

This is a snapshot from:
	https://chrome-internal.googlesource.com/chromeos/third_party/coreboot
at git sha1:
	277622db171f0cec82dc7beec437111896730d41

All files in the 3rdparty/ subdir have been stripped.

BUG=None
TEST=compiled internal repo & public repo and compared disassembled files

Change-Id: Ibc11ff2326561f949430bc233aa947fcb93b5b87
Reviewed-on: https://chromium-review.googlesource.com/194397
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Simon Arscott <arscott@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>