finalize_bundle: Get sign key name of factory install shim
Some factory install shim are with file name like xxx_mp-v3.bin.
In the README, it will show sign key is "undefined" after finalize_bundle.
Modify regular expression to get sign key name.
BUG=none
TEST=manually finalize a bundle
See correct sign key of install shim in the README file
Change-Id: I0796402f90dfb4fe9df881d4ea7d48f631ecd331
Reviewed-on: https://chromium-review.googlesource.com/204826
Commit-Queue: Bowgo Tsai <bowgotsai@chromium.org>
Tested-by: Bowgo Tsai <bowgotsai@chromium.org>
Reviewed-by: Justin Chuang <jchuang@chromium.org>
1 file changed
