misdn: Fix lockdep warning

use correct dynamic spinlock init function.
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/isdn/mISDN/tei.c

@@ -1287,7 +1287,7 @@ create_teimanager(struct mISDNdevice *dev)
 	if (!mgr)
 		return -ENOMEM;
 	INIT_LIST_HEAD(&mgr->layer2);
-	mgr->lock = __RW_LOCK_UNLOCKED(mgr->lock);
+	rwlock_init(&mgr->lock);
 	skb_queue_head_init(&mgr->sendq);
 	mgr->nextid = 1;
 	mgr->lastid = MISDN_ID_NONE;