Fix javadoc warnings

Change-Id: I3de24a04593f47c786f698f5ee1669b3d2f2fdfc
diff --git a/app/src/main/java/org/onosproject/olt/rest/OltWebResource.java b/app/src/main/java/org/onosproject/olt/rest/OltWebResource.java
index 8479c19..e3dafec 100644
--- a/app/src/main/java/org/onosproject/olt/rest/OltWebResource.java
+++ b/app/src/main/java/org/onosproject/olt/rest/OltWebResource.java
@@ -40,6 +40,9 @@
     /**
      * Provision a subscriber.
      *
+     * @param device device id
+     * @param port port number
+     * @param vlan vlan id
      * @return 200 OK
      */
     @POST
@@ -60,6 +63,10 @@
 
     /**
      * Remove the provisioning for a subscriber.
+     *
+     * @param device device id
+     * @param port port number
+     * @return 200 OK
      */
     @DELETE
     @Produces(MediaType.APPLICATION_JSON)