fddi: convert to new network device ops

Similar to ethernet. Convert infrastructure and the one lone FDDI
driver (for the one lone user of that hardware??). Compile tested only.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/fddidevice.h b/include/linux/fddidevice.h
index e61e42d..155bafd 100644
--- a/include/linux/fddidevice.h
+++ b/include/linux/fddidevice.h
@@ -27,6 +27,7 @@
 #ifdef __KERNEL__
 extern __be16	fddi_type_trans(struct sk_buff *skb,
 				struct net_device *dev);
+extern int fddi_change_mtu(struct net_device *dev, int new_mtu);
 extern struct net_device *alloc_fddidev(int sizeof_priv);
 #endif