[ATALK]: Add alloc_ltalkdev().

this matches the API used by other link layer like ethernet or token
ring.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/appletalk/ltpc.c b/drivers/net/appletalk/ltpc.c
index ad8e943..db4f369 100644
--- a/drivers/net/appletalk/ltpc.c
+++ b/drivers/net/appletalk/ltpc.c
@@ -1039,7 +1039,7 @@
 	unsigned long f;
 	unsigned long timeout;
 
-	dev = alloc_netdev(sizeof(struct ltpc_private), "lt%d", ltalk_setup);
+	dev = alloc_ltalkdev(sizeof(struct ltpc_private));
 	if (!dev)
 		goto out;