Supports netdev data path type in OpenstackNode.

Change-Id: I716276a98bd141e87bf20dd5314e52128cf7e495
diff --git a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
index 106e4ea..f30611b 100644
--- a/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
+++ b/apps/openstacknode/app/src/main/java/org/onosproject/openstacknode/impl/DistributedOpenstackNodeStore.java
@@ -83,6 +83,7 @@
             .register(DefaultOpenstackNode.class)
             .register(OpenstackNode.NodeType.class)
             .register(NodeState.class)
+            .register(OpenstackNode.DatapathType.class)
             .register(OpenstackPhyInterface.class)
             .register(DefaultOpenstackPhyInterface.class)
             .register(ControllerInfo.class)