Refactor LISP package to separate ctrl interface and impl classes

Change-Id: I4e94ff54299e886cd0e8b3ce38591b0900290f54
diff --git a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/authentication/LispMacAuthentication.java b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/authentication/LispMacAuthentication.java
index 166a88e..ced2d2d 100644
--- a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/authentication/LispMacAuthentication.java
+++ b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/authentication/LispMacAuthentication.java
@@ -23,9 +23,6 @@
 import java.security.InvalidKeyException;
 import java.security.NoSuchAlgorithmException;
 
-import static org.onosproject.lisp.msg.authentication.LispAuthenticationKeyEnum.SHA1;
-import static org.onosproject.lisp.msg.authentication.LispAuthenticationKeyEnum.SHA256;
-
 /**
  * LISP MAC authentication utility class.
  */
@@ -46,7 +43,7 @@
      */
     LispMacAuthentication(LispAuthenticationKeyEnum authType) {
 
-        if (authType == SHA1 || authType == SHA256) {
+        if (authType == LispAuthenticationKeyEnum.SHA1 || authType == LispAuthenticationKeyEnum.SHA256) {
             algorithm = authType.getName();
         } else {
             log.warn(NOT_SUPPORT_ALGORITHM_MSG, authType.getName());