Adding node role for ovs cluster nodes

The patch adds role primary/secondary for ovs cluster
nodes.

Change-Id: I991938ab6d58dce5fe30456a02fe4a77dcdd00a0
Related-PROD: PROD-22872
diff --git a/neutron/control/openvswitch/cluster.yml b/neutron/control/openvswitch/cluster.yml
index 3f80a55..5800060 100644
--- a/neutron/control/openvswitch/cluster.yml
+++ b/neutron/control/openvswitch/cluster.yml
@@ -17,6 +17,7 @@
     cluster_internal_protocol: 'http'
   neutron:
     server:
+      role: ${_param:openstack_node_role}
       global_physnet_mtu: ${_param:neutron_global_physnet_mtu}
       l3_ha: ${_param:neutron_l3_ha}
       dvr: ${_param:neutron_control_dvr}