Need to use 'pom' packaging at the top level

Change-Id: I992c49f5da4bbd3378679fc3c8ed51270cebe9ec
diff --git a/apps/packet-stats/pom.xml b/apps/packet-stats/pom.xml
index 33a83cf..c7d976a 100644
--- a/apps/packet-stats/pom.xml
+++ b/apps/packet-stats/pom.xml
@@ -25,7 +25,7 @@
     <groupId>org.onosproject</groupId>
     <artifactId>onos-apps-packet-stats</artifactId>
     <version>1.13.8-SNAPSHOT</version>
-    <packaging>bundle</packaging>
+    <packaging>pom</packaging>
 
     <description>ONOS OSGi bundle archetype</description>
     <url>http://onosproject.org</url>