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/r6040.c b/drivers/net/r6040.c
index 454e7de..72fd9e9 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -1059,6 +1059,7 @@
 	.ndo_set_multicast_list = r6040_multicast_list,
 	.ndo_change_mtu		= eth_change_mtu,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
 	.ndo_do_ioctl		= r6040_ioctl,
 	.ndo_tx_timeout		= r6040_tx_timeout,
 #ifdef CONFIG_NET_POLL_CONTROLLER