Ensure push_image is True for firmware branches.

BUG=None
TEST=None

Change-Id: Idd3e3fe1669fd6c8f84d811592cae2fcc2f761f9
Reviewed-on: https://gerrit.chromium.org/gerrit/28889
Reviewed-by: David James <davidjames@chromium.org>
Commit-Ready: David McMahon <djmm@chromium.org>
Reviewed-by: David McMahon <djmm@chromium.org>
Tested-by: David McMahon <djmm@chromium.org>
1 file changed