Add neutron metadata for memcache security strategy

Related-Prod: PROD-22099 (PROD:22099)

Change-Id: I3371c13c2f581521bc57029a186770997c49d0f2
diff --git a/neutron/control/cluster.yml b/neutron/control/cluster.yml
index 52a91ea..4a196fa 100644
--- a/neutron/control/cluster.yml
+++ b/neutron/control/cluster.yml
@@ -39,5 +39,10 @@
         ssl:
           enabled: ${_param:galera_ssl_enabled}
       role: ${_param:openstack_node_role}
+      cache:
+        security:
+          enabled: ${_param:neutron_memcache_security_enabled}
+          strategy: ${_param:openstack_memcache_security_strategy}
+          secret_key: ${_param:neutron_memcache_secret_key}
     identity:
       protocol: ${_param:cluster_internal_protocol}