Fix: correctly calculate the broadcast address for DHCP ACK

Change-Id: I240b370304c52c71cdeeeee7a6d1272788bc8390
diff --git a/apps/openstacknetworking/app/BUILD b/apps/openstacknetworking/app/BUILD
index 3f79a02..e11551a 100644
--- a/apps/openstacknetworking/app/BUILD
+++ b/apps/openstacknetworking/app/BUILD
@@ -16,6 +16,7 @@
     "@jersey_client//jar",
     "@httpclient_osgi//jar",
     "@httpcore_osgi//jar",
+    "@commons_net//jar",
     "@commons_codec//jar",
     "@openstack4j_core//jar",
     "@openstack4j_http_connector//jar",