Added new class for keepalived on control nodes

Change-Id: I4596c55f31fb83d149e354112d5f4607e701752f
Related-Bug: PROD-19814
diff --git a/classes/cluster/sl-os-contrail/openstack/control.yml b/classes/cluster/sl-os-contrail/openstack/control.yml
index dee70ed..8404be4 100755
--- a/classes/cluster/sl-os-contrail/openstack/control.yml
+++ b/classes/cluster/sl-os-contrail/openstack/control.yml
@@ -40,6 +40,7 @@
 - system.galera.server.database.keystone
 - system.galera.server.database.nova
 - system.galera.server.database.designate
+- system.keepalived.cluster.instance.stacklight_control_vip
 - cluster.sl-os-contrail
 parameters:
   _param: