[ONOS-5267] Rewrite LISP bootstrap class to use UDP rather than TCP

- Try to use MessageToMessageDecoder to decode DatagramPacket
- Use Bootstrap instead of ServerBootstrap in a way to use UDP
- Add a dummy LispController interface
- Remove unnecessary handlers from LispChannelInitializer
- Rename LispController to LispControllerBootstrap

Change-Id: I7d930f46ffb87d88b3449ba78e066d8b1c065093
diff --git a/protocols/lisp/ctl/src/main/java/org/onosproject/lisp/ctl/LispMapResolver.java b/protocols/lisp/ctl/src/main/java/org/onosproject/lisp/ctl/LispMapResolver.java
index 01b654a..d021a8f 100644
--- a/protocols/lisp/ctl/src/main/java/org/onosproject/lisp/ctl/LispMapResolver.java
+++ b/protocols/lisp/ctl/src/main/java/org/onosproject/lisp/ctl/LispMapResolver.java
@@ -21,9 +21,9 @@
  * LISP map resolver class.
  * Handles map-request message and acknowledges with map-reply message.
  */
-public class LispMapResolver implements LispMapSystem {
-    @Override
-    public LispMessage process(LispMessage message) {
+public class LispMapResolver {
+
+    public LispMessage processMapRequest(LispMessage message) {
         // TODO: need to implement map-register message processing logic
         return null;
     }