ONOS-2843 Fix bug post NBI subnet get an error.

Change-Id: I93b52a0c69a57b458b610afbb78cfdec0b50e3a5
diff --git a/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
index 879dd35..ab810a8 100644
--- a/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
+++ b/apps/vtnrsc/src/main/java/org/onosproject/vtnrsc/subnet/impl/SubnetManager.java
@@ -21,12 +21,14 @@
 import org.apache.felix.scr.annotations.Reference;

 import org.apache.felix.scr.annotations.ReferenceCardinality;

 import org.apache.felix.scr.annotations.Service;

+import org.onlab.packet.IpAddress;

 import org.onosproject.core.ApplicationId;

 import org.onosproject.core.CoreService;

 import org.onosproject.store.serializers.KryoNamespaces;

 import org.onosproject.store.service.Serializer;

 import org.onosproject.store.service.StorageService;

 import org.onosproject.vtnrsc.AllocationPool;

+import org.onosproject.vtnrsc.DefaultSubnet;

 import org.onosproject.vtnrsc.HostRoute;

 import org.onosproject.vtnrsc.Subnet;

 import org.onosproject.vtnrsc.SubnetId;

@@ -86,7 +88,9 @@
                                                  TenantId.class,

                                                  HostRoute.class,

                                                  Subnet.Mode.class,

-                                                 AllocationPool.class))

+                                                 AllocationPool.class,

+                                                 DefaultSubnet.class,

+                                                 IpAddress.Version.class))

                 .build().asJavaMap();

 

         log.info("Started");