Cleaning up javadocs.

Change-Id: I67a0600fc80f9d7b0859f2e0e7634579cab6cfbf
diff --git a/src/main/java/org/onosproject/cordvtn/CordVtnArpProxy.java b/src/main/java/org/onosproject/cordvtn/CordVtnArpProxy.java
index 82f5dd3..0b61ea7 100644
--- a/src/main/java/org/onosproject/cordvtn/CordVtnArpProxy.java
+++ b/src/main/java/org/onosproject/cordvtn/CordVtnArpProxy.java
@@ -60,6 +60,7 @@
      *
      * @param appId application id
      * @param packetService packet service
+     * @param hostService host service reference
      */
     public CordVtnArpProxy(ApplicationId appId, PacketService packetService, HostService hostService) {
         this.appId = appId;