netdev: add missing set_mac_address hook

Many drivers lost the ability to set ethernet address accidently
during the net_device_ops conversion.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index dc3f110..020c583 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -1740,6 +1740,7 @@
 	.ndo_set_multicast_list	= smsc911x_set_multicast_list,
 	.ndo_do_ioctl		= smsc911x_do_ioctl,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= smsc911x_poll_controller,
 #endif