Pass ports as []*api.ServicePort into LoadBalancer provider

Because AWS needs the NodePort; this also paves the way for e.g. UDP balancing

pkg/cloudprovider/servicecontroller/servicecontroller_test.go

@@ -113,7 +113,7 @@ func TestCreateExternalLoadBalancer(t *testing.T) {
 				t.Errorf("expected one load balancer to be created, got %v", cloud.Balancers)
 			} else if cloud.Balancers[0].Name != controller.loadBalancerName(item.service) ||
 				cloud.Balancers[0].Region != region ||
-				cloud.Balancers[0].Ports[0] != item.service.Spec.Ports[0].Port {
+				cloud.Balancers[0].Ports[0].Port != item.service.Spec.Ports[0].Port {
 				t.Errorf("created load balancer has incorrect parameters: %v", cloud.Balancers[0])
 			}
 			actionFound := false