Move BGP listen port configuration to BgpSessionManager component

Change-Id: I445bff180740fededacaa59441fc53332cc3d482
diff --git a/apps/routing/src/test/java/org/onosproject/routing/RouterTest.java b/apps/routing/src/test/java/org/onosproject/routing/RouterTest.java
index 176c159..26ed60a 100644
--- a/apps/routing/src/test/java/org/onosproject/routing/RouterTest.java
+++ b/apps/routing/src/test/java/org/onosproject/routing/RouterTest.java
@@ -84,7 +84,7 @@
         setUpHostService();
 
         BgpService bgpService = createMock(BgpService.class);
-        bgpService.start(anyObject(RouteListener.class), anyInt());
+        bgpService.start(anyObject(RouteListener.class));
         bgpService.stop();
         replay(bgpService);