[NETROM]: Introduct stuct nr_private

NET/ROM's virtual interfaces don't have a proper private data
structure yet.  Create struct nr_private and put the statistics there.

Signed-off-by: Ralf Baechle DL5RB <ralf@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 8c3d3a7..e5d82d7 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1392,8 +1392,7 @@
 		struct net_device *dev;
 
 		sprintf(name, "nr%d", i);
-		dev = alloc_netdev(sizeof(struct net_device_stats), name,
-					  nr_setup);
+		dev = alloc_netdev(sizeof(struct nr_private), name, nr_setup);
 		if (!dev) {
 			printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device structure\n");
 			goto fail;