Consolidate barbican_integration_enabled settings

barbican might be enabled in multiple openstack services
 * nova
 * glance
 * cinder

Instead of enabling it on cluster level, move this integration
to system. Use barbican_integration_enabled option for this.

Change-Id: Ifcb2c404d700232085ba983dbca3b41dcdaaa43e
Related-Prod: PROD-25026
Related-Prod: PROD-25025
Related-Prod: PROD-25023
diff --git a/nova/compute/cluster.yml b/nova/compute/cluster.yml
index 84e00fd..fdb8bcb 100644
--- a/nova/compute/cluster.yml
+++ b/nova/compute/cluster.yml
@@ -70,6 +70,8 @@
         password: ${_param:keystone_nova_password}
         tenant: service
         protocol: ${_param:cluster_internal_protocol}
+      barbican:
+        enabled: ${_param:barbican_integration_enabled}
       message_queue:
         engine: rabbitmq
         port: ${_param:openstack_rabbitmq_port}