[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/include/linux/if_ltalk.h b/include/linux/if_ltalk.h
index e75e832..7652576 100644
--- a/include/linux/if_ltalk.h
+++ b/include/linux/if_ltalk.h
@@ -6,7 +6,7 @@
 #define LTALK_ALEN		1
 
 #ifdef __KERNEL__
-extern void ltalk_setup(struct net_device *);
+extern struct net_device *alloc_ltalkdev(int sizeof_priv);
 #endif
 
 #endif