Fix barbican model

Pillar cannot be rendered currently, barbican_version is
required but undefined.

Change-Id: Ia784c39de8dce970e65f17d4a45c6e0620693cab
Related-Prod: https://mirantis.jira.com/browse/PROD-20129
diff --git a/classes/cluster/virtual-mcp11-aio-barbican/openstack/init.yml b/classes/cluster/virtual-mcp11-aio-barbican/openstack/init.yml
index e4503f8..8419885 100755
--- a/classes/cluster/virtual-mcp11-aio-barbican/openstack/init.yml
+++ b/classes/cluster/virtual-mcp11-aio-barbican/openstack/init.yml
@@ -8,6 +8,7 @@
   _param:
     keystone_barbican_password: workshop
     barbican_service_host: ${_param:single_address}
+    barbican_version: ${_param:openstack_version}
     mysql_barbican_password: workshop
     barbican_simple_crypto_kek: YWJjZGVmZ2hpamtsbW5vcHFyc3R1dnd4eXoxMjM0NTY=
     barbican_integration_enabled: true