[ONOS-6549] (vNet) Balance role commands for virtual netwrok

Change-Id: Iadf22cd735bed0b055ada5542be8b1d2edb8188e
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
index a303df2..a760282 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/VirtualNetworkService.java
@@ -111,6 +111,8 @@
      * <li>{@link org.onosproject.net.flowobjective.FlowObjectiveService}</li>
      * <li>{@link org.onosproject.net.intent.IntentService}</li>
      * <li>{@link org.onosproject.mastership.MastershipService}</li>
+     * <li>{@link org.onosproject.mastership.MastershipAdminService}</li>
+     * <li>{@link org.onosproject.mastership.MastershipTermService}</li>
      * </ul>
      *
      * @param networkId    network identifier