Add pushMerge for starlingx-release
Add pushMerge for starlingx-release

Allow the release team to re-merge from feature branches.

Change-Id: Id81d941f51ba3079ceb2aab505b32d028481a76c
Signed-off-by: Dean Troyer <8b9d4b97f386f6f54679ab5c0c082ebdb224d70a@gmail.com>

openstack-infra/project-config,openstack-infra/project-config