net: axienet: use eth_hw_addr_random()

Use eth_hw_addr_random() to set a random MAC address in order to make
sure ndev->addr_assign_type will be properly set to NET_ADDR_RANDOM.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/xilinx/xilinx_axienet_main.c

@@ -301,7 +301,7 @@ static void axienet_set_mac_address(struct net_device *ndev,
 	if (address)
 		memcpy(ndev->dev_addr, address, ETH_ALEN);
 	if (!is_valid_ether_addr(ndev->dev_addr))
-		eth_random_addr(ndev->dev_addr);
+		eth_hw_addr_random(ndev);
 
 	/* Set up unicast MAC address filter set its mac address */
 	axienet_iow(lp, XAE_UAW0_OFFSET,