netdev: restore MAC address set and validate operations

alloc_etherdev() used to install default implementations of these
operations, but they must now be explicitly installed in struct
net_device_ops.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/arm/ixp4xx_eth.c b/drivers/net/arm/ixp4xx_eth.c
index 6f42ad7..87fde32 100644
--- a/drivers/net/arm/ixp4xx_eth.c
+++ b/drivers/net/arm/ixp4xx_eth.c
@@ -1142,7 +1142,8 @@
 	.ndo_start_xmit = eth_xmit,
 	.ndo_set_multicast_list = eth_set_mcast_list,
 	.ndo_do_ioctl = eth_ioctl,
-
+	.ndo_set_mac_address = eth_mac_addr,
+	.ndo_validate_addr = eth_validate_addr,
 };
 
 static int __devinit eth_init_one(struct platform_device *pdev)