Add kafka-onos to pom.

Change-Id: Ib97752a053501cf586e5bea5ccf3b9bcf6addd40
diff --git a/apps/pom.xml b/apps/pom.xml
index f4881d0..629e2f6 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -43,6 +43,7 @@
         <module>config</module>
         <module>igmp</module>
         <module>igmpproxy</module>
+        <module>kafka-onos</module>
         <module>mcast</module>
         <module>olt</module>
         <module>sadis</module>