heat-dashboard: use heat_policy.yaml
heat-dashboard: use heat_policy.yaml

This was converted to YaML in I0e53dfd653213a78ccca8a20f4e909b5ed798641

Change-Id: I5afe9d0d0f0725e8691105032327d1af333a38a0

openstack/rpm-packaging,openstack/rpm-packaging