openshift_node: Add MASTER_SERVICE on system container install

Setting the MASTER_SERVICE to openshift.common.service_type.

Signed-off-by: Steve Milner <smilner@redhat.com>

roles/openshift_node/tasks/node_system_container.yml

@@ -12,4 +12,5 @@
     values:
     - "DNS_DOMAIN={{ openshift.common.dns_domain }}"
     - "DOCKER_SERVICE={{ openshift.docker.service_name }}.service"
+    - "MASTER_SERVICE={{ openshift.common.service_type }}.service"
     state: latest