[CONNECTOR]: Fix compilation breakage introduced recently.

Linus has changed work queue structure and has not tested it with
connector compiled in, his changes break the build.

Attached patch fixes compilation error.

Patch is against commit 99f5e971.

Thanks to Toralf Förster for pointing this out.
Signed-off-by: NEvgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/connector/connector.c

@@ -135,8 +135,7 @@ static int cn_call_callback(struct cn_msg *msg, void (*destruct_data)(void *), v
 	spin_lock_bh(&dev->cbdev->queue_lock);
 	list_for_each_entry(__cbq, &dev->cbdev->queue_list, callback_entry) {
 		if (cn_cb_equal(&__cbq->id.id, &msg->id)) {
-			if (likely(!test_bit(WORK_STRUCT_PENDING,
-					     &__cbq->work.work.management) &&
+			if (likely(!work_pending(&__cbq->work.work) &&
 					__cbq->data.ddata == NULL)) {
 				__cbq->data.callback_priv = msg;