Adding groupId to root pom

Change-Id: Ia102c90fe873070b31eb7b83813436ab4beb491b
diff --git a/pom.xml b/pom.xml
index 7ddf7aa..d16919b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,6 +30,7 @@
         <relativePath>tools/build/pom.xml</relativePath>
     </parent>
 
+    <groupId>org.onosproject</groupId>
     <artifactId>onos</artifactId>
     <packaging>pom</packaging>
     <version>1.3.0-SNAPSHOT</version>