Enable barbican-keystone-listener for virtual-mcp11-aio model

This patch enables barbican-keystone-listener service for virtual-mcp11-aio model

Change-Id: I2a2d0e647602b6f13245ccf62117938c1c88bdb4
Related-PROD: PROD-15168
diff --git a/classes/cluster/virtual-mcp11-aio/openstack/init.yml b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
index ff213c4..3418995 100755
--- a/classes/cluster/virtual-mcp11-aio/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio/openstack/init.yml
@@ -129,6 +129,7 @@
       enabled: false
   barbican:
     server:
+      ks_notifications_enable: True
       store:
         software:
           crypto_plugin: simple_crypto