Keystone v3 support for opencontrail

Change-Id: I230438c62aaf9a95f8760f0daeed242906ecd132
diff --git a/metadata/service/control/control.yml b/metadata/service/control/control.yml
index 2e8b34d..9c46a34 100644
--- a/metadata/service/control/control.yml
+++ b/metadata/service/control/control.yml
@@ -47,6 +47,7 @@
         host: ${_param:cluster_local_address}
       identity:
         engine: keystone
+        version: '2.0'
         region: RegionOne
         host: ${_param:cluster_vip_address}
         port: 35357
@@ -123,6 +124,7 @@
         id: 3
       identity:
         engine: keystone
+        version: '2.0'
         host: ${_param:cluster_vip_address}
         port: 35357
         user: admin