Move autogeneration of VTN config from ONOS synchronizer

Change-Id: I752d4767be2ee5a987ef3c4621d6c0ecc382fd87
diff --git a/xos/synchronizer/manifest b/xos/synchronizer/manifest
index 9f1c8c4..d144ec2 100644
--- a/xos/synchronizer/manifest
+++ b/xos/synchronizer/manifest
@@ -2,6 +2,7 @@
 vtn-synchronizer.py
 steps/sync_vtn_service.py
 steps/sync_port_addresses.py
+steps/sync_onos_netcfg.py
 start.sh
 stop.sh
 model-deps