Fix for OpenShift SDN Check

roles/openshift_node/defaults/main.yml

@@ -8,4 +8,4 @@ os_firewall_allow:
   port: 443/tcp
 - service: OpenShift OVS sdn
   port: 4789/udp
-  when: openshift.node.use_openshift_sdn | bool
+  when: openshift.common.use_openshift_sdn | bool