[ONOS-4839] update file priority for translator and OP param file impl defect fix

Change-Id: Ieaef43f915996ed0a34dfa17c338ab612716b2bc
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangGrouping.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangGrouping.java
index 0f6ba7a..bf85835 100644
--- a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangGrouping.java
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangGrouping.java
@@ -79,7 +79,7 @@
  */
 public class YangGrouping
         extends YangNode
-        implements YangLeavesHolder, YangCommonInfo, Parsable, CollisionDetector {
+        implements YangLeavesHolder, YangCommonInfo, Parsable, CollisionDetector, YangTranslatorOperatorNode {
 
     private static final long serialVersionUID = 806201607L;