Adding groupId to root pom for versions plugin

Change-Id: Iad10f069df4b10ed6d9795c3d3568416a0beb3c4
diff --git a/pom.xml b/pom.xml
index 2978ee5..6dbcda1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -24,6 +24,7 @@
         <version>1</version>
     </parent>
 
+    <groupId>org.onosproject</groupId>
     <artifactId>onos-yang-utils</artifactId>
     <version>1.9-SNAPSHOT</version>
     <packaging>pom</packaging>