Pass region for nova and ceilometer

This patch make sure _param:openstack_region passed in current
existed classes for nova and ceilometer

Change-Id: Icb388c17590cf6405f73d3bf41729b3b6fea2058
diff --git a/nova/control/single.yml b/nova/control/single.yml
index ca21d05..07a3b01 100644
--- a/nova/control/single.yml
+++ b/nova/control/single.yml
@@ -15,7 +15,9 @@
         host: ${_param:single_address}
       identity:
         protocol: ${_param:cluster_internal_protocol}
+        region: ${_param:openstack_region}
       network:
         protocol: ${_param:cluster_internal_protocol}
+        region: ${_param:openstack_region}
       glance:
         protocol: ${_param:cluster_internal_protocol}