Add NS server entries to the model and deploy pdns on backend

Related-PROD: https://mirantis.jira.com/browse/PROD-12631
Related-PROD: https://mirantis.jira.com/browse/PROD-14396

Depends-On: I214d8db39365648b5ef9348b52edd839327ca197
Change-Id: I5a6eaa31bb0b9f4277dbec5eb8c7464546079b9f
diff --git a/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml b/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
index eba6c65..48bfdb4 100644
--- a/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
+++ b/classes/cluster/virtual-mcp-ocata-dvr/infra/config.yml
@@ -19,6 +19,7 @@
 - system.keystone.client.service.cinder3
 - system.keystone.client.service.designate
 - system.mysql.client.single
+- system.reclass.storage.system.openstack_dns_cluster
 - system.reclass.storage.system.openstack_control_cluster
 - system.reclass.storage.system.openstack_compute_multi
 - system.reclass.storage.system.openstack_gateway_single