Fixing residual ON.Lab references.

Change-Id: Ic54a281ce67e49236c7aeb536729d3900dd9433d
diff --git a/providers/null/src/main/java/org/onosproject/provider/nil/TopologySimulator.java b/providers/null/src/main/java/org/onosproject/provider/nil/TopologySimulator.java
index 775a2d7..62410a3 100644
--- a/providers/null/src/main/java/org/onosproject/provider/nil/TopologySimulator.java
+++ b/providers/null/src/main/java/org/onosproject/provider/nil/TopologySimulator.java
@@ -206,7 +206,7 @@
     public void createDevice(DeviceId id, int chassisId, Device.Type type, int portCount) {
         DeviceDescription desc =
                 new DefaultDeviceDescription(id.uri(), type,
-                                             "ON.Lab", "0.1", "0.1", "1234",
+                                             "ONF", "0.1", "0.1", "1234",
                                              new ChassisId(chassisId));
         deviceIds.add(id);
         mastershipAdminService.setRoleSync(localNode, id, MASTER);