Also add shortcuts, so we don't have to look through all the branches
if the patch is based on a common branch (i.e. master, infra/config, lkgr)


Bug: 870279
Change-Id: I625a8481dccac9a475b096b926e6fab7efe676b0
Reviewed-on: https://chromium-review.googlesource.com/1161094
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>