Add cinder metadata for memcache security strategy

PROD-22099

Change-Id: I36de03a2a32d94d7995018c1812a0eb841dc68c4
diff --git a/cinder/volume/local.yml b/cinder/volume/local.yml
index 52f45db..2e7f8de 100644
--- a/cinder/volume/local.yml
+++ b/cinder/volume/local.yml
@@ -30,3 +30,8 @@
       identity:
         host: ${_param:single_address}
         region: ${_param:openstack_region}
+      cache:
+        security:
+          enabled: ${_param:cinder_memcache_security_enabled}
+          strategy: ${_param:openstack_memcache_security_strategy}
+          secret_key: ${_param:cinder_memcache_secret_key}