Fix Keepalive vip interfere with contrail vip

Change-Id: If14485b73cfe36115582911297bb2775cb32a5bb
diff --git a/classes/cluster/virtual-mcp11-contrail/openstack/control.yml b/classes/cluster/virtual-mcp11-contrail/openstack/control.yml
index 2887191..8869a18 100755
--- a/classes/cluster/virtual-mcp11-contrail/openstack/control.yml
+++ b/classes/cluster/virtual-mcp11-contrail/openstack/control.yml
@@ -45,7 +45,7 @@
 parameters:
   _param:
     keepalived_vip_interface: ens4
-    keepalived_openstack_telemetry_vip_address: 172.16.10.252
+    keepalived_openstack_telemetry_vip_address: 172.16.10.251
     cluster_vip_address: ${_param:openstack_control_address}
     cluster_local_address: ${_param:single_address}
     cluster_node01_hostname: ctl01