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/enic/enic_main.c b/drivers/net/enic/enic_main.c
index d039e16..7d60551 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1599,6 +1599,7 @@
 	.ndo_start_xmit		= enic_hard_start_xmit,
 	.ndo_get_stats		= enic_get_stats,
 	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_set_mac_address 	= eth_mac_addr,
 	.ndo_set_multicast_list	= enic_set_multicast_list,
 	.ndo_change_mtu		= enic_change_mtu,
 	.ndo_vlan_rx_register	= enic_vlan_rx_register,