add Keystone region configuration

Change-Id: If672a613f0b6d4ef2bbbf123b2fe716d95c86e2b
diff --git a/tests/pillar/control_single.sls b/tests/pillar/control_single.sls
index 14741a5..0817493 100644
--- a/tests/pillar/control_single.sls
+++ b/tests/pillar/control_single.sls
@@ -18,6 +18,7 @@
       password: password
     identity:
       engine: keystone
+      region: RegionOne
       host: 127.0.0.1
       port: 35357
       user: neutron
@@ -32,6 +33,7 @@
       virtual_host: '/openstack'
     compute:
       host: 127.0.0.1
+      region: RegionOne
       user: nova
       password: password
       tenant: service