Deploy with custom region

This patch updates default openstack_region to CustomRegion
to make sure we support this case.

Change-Id: I04235dffa77f0e1cab17dc5a8d818b27cbf578be
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index a920e78..530c09d 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -43,7 +43,7 @@
     openstack_version: pike
     cluster_public_host: ${_param:single_address}
     cluster_public_protocol: http
-    openstack_region: RegionOne
+    openstack_region: CustomRegion
     admin_email: root@localhost
     rabbitmq_openstack_password: workshop
     galera_server_cluster_name: openstack_cluster