Refactor: move LCAF related address classes under lcaf package

Change-Id: I828fe5596c84b121b9382a69107ddfce20840f99
diff --git a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAfiAddress.java b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAfiAddress.java
index c333236..83dad7b 100644
--- a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAfiAddress.java
+++ b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAfiAddress.java
@@ -19,6 +19,7 @@
 import org.onosproject.lisp.msg.exceptions.LispParseError;
 import org.onosproject.lisp.msg.exceptions.LispReaderException;
 import org.onosproject.lisp.msg.exceptions.LispWriterException;
+import org.onosproject.lisp.msg.types.lcaf.LispLcafAddress;
 
 import java.util.Objects;