SEBA-194 Reverse ONOS_Fabric/Fabric dependency direction

Change-Id: Ic088c5ca9100e28dec4bbdb14e9eb8900a8fdfec
diff --git a/xos/synchronizer/steps/helpers.py b/xos/synchronizer/steps/helpers.py
index 1f53674..08be81d 100644
--- a/xos/synchronizer/steps/helpers.py
+++ b/xos/synchronizer/steps/helpers.py
@@ -25,5 +25,5 @@
     def get_onos_fabric_service():
         # FIXME do not select by name but follow ServiceDependency
         fabric_service = Service.objects.get(name="fabric")
-        onos_fabric_service = fabric_service.subscriber_services[0].leaf_model
-        return onos_fabric_service
\ No newline at end of file
+        onos_fabric_service = fabric_service.provider_services[0].leaf_model
+        return onos_fabric_service