Move OS Dashboard to ctl nodes in OS HA OVS

Change-Id: I2aef7d99373152bb192d9b66e93da3a74afe8639
diff --git a/classes/cluster/os_ha_ovs/openstack/init.yml b/classes/cluster/os_ha_ovs/openstack/init.yml
index fff4f05..5920112 100644
--- a/classes/cluster/os_ha_ovs/openstack/init.yml
+++ b/classes/cluster/os_ha_ovs/openstack/init.yml
@@ -28,7 +28,7 @@
     openstack_region: RegionOne
     admin_email: root@localhost
     cluster_public_protocol: http
-    cluster_public_host: ${_param:openstack_control_address}
+    cluster_public_host: ${_param:openstack_proxy_address}
     neutron_public_protocol: http
     neutron_control_dvr: False
     neutron_tenant_network_types: "flat,vxlan"