add Keystone region configuration

Change-Id: I2a0e74a0641a01bcb5e96ada0c013664e773b482
diff --git a/metadata/service/compute/kvm.yml b/metadata/service/compute/kvm.yml
index 5b3c064..7fa0036 100644
--- a/metadata/service/compute/kvm.yml
+++ b/metadata/service/compute/kvm.yml
@@ -23,6 +23,7 @@
         password: ${_param:mysql_nova_password}
       identity:
         engine: keystone
+        region: RegionOne
         host: ${_param:cluster_vip_address}
         port: 35357
         user: nova
@@ -41,6 +42,7 @@
         port: 9292
       network:
         engine: neutron
+        region: RegionOne
         host: ${_param:cluster_vip_address}
         port: 9696
       cache: