[ONOS-5096][ONOS-5104] Checkstyle issues fixed for generated code.

Change-Id: I6a0984c2b397dbeda912e75138d5ad9e7adf33d5
diff --git a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
index b04f617..c8b7804 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
@@ -83,7 +83,7 @@
 
         // Create a listener implementation class object.
         TreeWalkListener treeWalker = new TreeWalkListener();
-
+        treeWalker.setFileName(yangFile);
         /**
          * Walk parse tree, provide call backs to methods in listener and build
          * data model tree.