Add designate worker role as default for deployments

This change is a preparational step before changes proposed in
CR [1] will be merged.

Changes to virtual-mcp-ocata-dvr model are not proposed here
due to parallel change to it:
https://gerrit.mcp.mirantis.net/6723

[1] https://gerrit.mcp.mirantis.net/10030

Change-Id: I38e4e919c53753cbb575facf0c7333a9da89c44b
Related-CR: https://gerrit.mcp.mirantis.net/10030
Related-PROD: https://mirantis.jira.com/browse/PROD-14396
diff --git a/classes/cluster/os-ha-contrail-40/openstack/init.yml b/classes/cluster/os-ha-contrail-40/openstack/init.yml
index c129dea..f54eec9 100644
--- a/classes/cluster/os-ha-contrail-40/openstack/init.yml
+++ b/classes/cluster/os-ha-contrail-40/openstack/init.yml
@@ -76,6 +76,7 @@
       rndc_port: 953
       rndc_key_file: /etc/designate/rndc.key
     designate_version: ${_param:openstack_version}
+    designate_worker_enabled: true
     cluster_vip_address: ${_param:openstack_control_address}
     glance_version: ${_param:openstack_version}
     glance_service_host: ${_param:openstack_control_address}