Bump up the LISP LCAF version from draft 20 to draft 22

Change-Id: If946ac5bd6159b050838d577cbea7795e15d5693
diff --git a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAppDataLcafAddress.java b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAppDataLcafAddress.java
index fe91471..d5cdf35 100644
--- a/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAppDataLcafAddress.java
+++ b/protocols/lisp/msg/src/main/java/org/onosproject/lisp/msg/types/LispAppDataLcafAddress.java
@@ -30,8 +30,8 @@
 /**
  * Application data type LCAF address class.
  * <p>
- * Application data type is defined in draft-ietf-lisp-lcaf-20
- * https://tools.ietf.org/html/draft-ietf-lisp-lcaf-20#page-27
+ * Application data type is defined in draft-ietf-lisp-lcaf-22
+ * https://tools.ietf.org/html/draft-ietf-lisp-lcaf-22#page-27
  *
  * <pre>
  * {@literal