add Keystone region configuration

Change-Id: If672a613f0b6d4ef2bbbf123b2fe716d95c86e2b
diff --git a/tests/pillar/control_cluster.sls b/tests/pillar/control_cluster.sls
index 03b0392..9133472 100644
--- a/tests/pillar/control_cluster.sls
+++ b/tests/pillar/control_cluster.sls
@@ -18,6 +18,7 @@
       password: password
     identity:
       engine: keystone
+      region: RegionOne
       host: 127.0.0.1
       port: 35357
       user: neutron
@@ -33,6 +34,7 @@
       ha_queues: true
     compute:
       host: 127.0.0.1
+      region: RegionOne
       user: nova
       password: password
       tenant: service