Open designate-mdns ports in firewall
Open designate-mdns ports in firewall

For ha this is necessary so BIND servers on other nodes can request
zone transfers from mdns services that aren't on their local system.

Change-Id: Ia87be3b94eebedccadec2b2ff6d2687dcfb9d87a

openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,openstack/tripleo-heat-templates,dprince/tripleo-heat-templates