Small refactoring to support new packet-out API

Change-Id: I33094045b074fc00352ec1ba62e18e690dc3f3ad
diff --git a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
index d3db080..77703e5 100644
--- a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
+++ b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
@@ -19,7 +19,6 @@
 import net.floodlightcontroller.core.module.IFloodlightModule;
 import net.floodlightcontroller.core.module.IFloodlightService;
 import net.floodlightcontroller.util.MACAddress;
-import net.onrc.onos.apps.proxyarp.BroadcastPacketOutNotification;
 import net.onrc.onos.apps.proxyarp.IProxyArpService;
 import net.onrc.onos.core.datagrid.IDatagridService;
 import net.onrc.onos.core.datagrid.IEventChannel;
@@ -36,6 +35,7 @@
 import net.onrc.onos.core.intent.runtime.IPathCalcRuntimeService;
 import net.onrc.onos.core.intent.runtime.IntentStateList;
 import net.onrc.onos.core.packet.Ethernet;
+import net.onrc.onos.core.packetservice.BroadcastPacketOutNotification;
 import net.onrc.onos.core.registry.IControllerRegistryService;
 import net.onrc.onos.core.topology.Device;
 import net.onrc.onos.core.topology.INetworkGraphService;