Set notifications option for Nova

It was found that notifications for vm state change are generated
by nova-conductor so we need also set this option on controllers.

Change-Id: I997a50fd17dfd8b9442c84e9b592088524ec5ec6
Related-Prod: https://mirantis.jira.com/browse/PROD-17879
diff --git a/classes/cluster/virtual-mcp-pike-dvr-ssl-barbican/openstack/control.yml b/classes/cluster/virtual-mcp-pike-dvr-ssl-barbican/openstack/control.yml
index 88f6f53..cb8a506 100644
--- a/classes/cluster/virtual-mcp-pike-dvr-ssl-barbican/openstack/control.yml
+++ b/classes/cluster/virtual-mcp-pike-dvr-ssl-barbican/openstack/control.yml
@@ -306,6 +306,9 @@
         port: ${_param:rabbitmq_port}
         ssl:
           enabled: ${_param:rabbitmq_ssl_enabled}
+      notification:
+        notify_on:
+          state_change: vm_and_task_state
   cinder:
     controller:
       controller: