mediatek/mt8173: Add gen-bl-img.py for mt8173 bootblock code

The mt8173 boot rom expects the bootblock to be in a certain format.
gen-bl-img wraps our bootblock appropriately.

BUG=none
TEST=emerge-oak coreboot
BRANCH=none

Change-Id: I7486e548d356c5bd27261851f1f1bed620715e91
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: fbcd7959e0fda595de91899ace7236037ac833d3
Original-Change-Id: Ib9df440bfa95cf06e8041491ecdb34c357047acd
Original-Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/292664
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/12613
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
2 files changed