Fix region for glance,manila,heat

Change-Id: I50a670ec5c0fcc097893552f151b837426e6a738
diff --git a/glance/control/single.yml b/glance/control/single.yml
index b285d38..5580b66 100644
--- a/glance/control/single.yml
+++ b/glance/control/single.yml
@@ -11,4 +11,6 @@
     server:
       database:
         host: ${_param:single_address}
+      identity:
+        region: ${_param:openstack_region}
       show_multiple_locations: True