Move project-configs to gate hook
Move project-configs to gate hook

Fix gate broken, we keep project configs in gate_hook.sh so we don't
need to subumit requests to project-config and wait for their
approval

Change-Id: Ia9cc4c40b41db1159ad6fd3c4ec1b17b502e0f5b

ArchiFleKs/magnum,openstack/magnum,ArchiFleKs/magnum,jay-lau/magnum,openstack/magnum