Enable checkstyle check for newline at the end of
source files and fix the errors found.

Change-Id: If1c8eb2127d2f2394157750e6bae7b94169c6bc4
diff --git a/src/main/java/net/onrc/onos/core/linkdiscovery/web/LinkWithType.java b/src/main/java/net/onrc/onos/core/linkdiscovery/web/LinkWithType.java
index 733f28c..5271794 100644
--- a/src/main/java/net/onrc/onos/core/linkdiscovery/web/LinkWithType.java
+++ b/src/main/java/net/onrc/onos/core/linkdiscovery/web/LinkWithType.java
@@ -64,4 +64,4 @@
     public Class<LinkWithType> handledType() {
         return LinkWithType.class;
     }
-}
\ No newline at end of file
+}