add name param to salt-virt classes

Change-Id: I43283c294d28eb59aa076dfcdd779dd5553dbe79
diff --git a/salt/control/cluster/openstack_dns_cluster.yml b/salt/control/cluster/openstack_dns_cluster.yml
index 71af5c1..7f1dbb8 100644
--- a/salt/control/cluster/openstack_dns_cluster.yml
+++ b/salt/control/cluster/openstack_dns_cluster.yml
@@ -13,10 +13,12 @@
           engine: virt
           node:
             dns01:
+              name: ${_param:openstack_dns_node01_hostname}
               provider: ${_param:infra_kvm_node01_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
               size: openstack.dns
             dns02:
+              name: ${_param:openstack_dns_node02_hostname}
               provider: ${_param:infra_kvm_node02_hostname}.${_param:cluster_domain}
               image: ${_param:salt_control_xenial_image}
               size: openstack.dns