igbvf, ixgbevf: use dev_hw_addr_random

Both igbvf and ixgbevf should set addr_assign_type to NET_ADDR_RANDOM
so udev creates persistent net rules by matching the device path.
Do this by using the dev_hw_addr_random helper function.
Signed-off-by: Stefan Assmann <sassmann@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/igbvf/netdev.c

@@ -2751,7 +2751,7 @@ static int __devinit igbvf_probe(struct pci_dev *pdev,
 		dev_info(&pdev->dev,
 			 "PF still in reset state, assigning new address."
 			 " Is the PF interface up?\n");
-		random_ether_addr(hw->mac.addr);
+		dev_hw_addr_random(adapter->netdev, hw->mac.addr);
 	} else {
 		err = hw->mac.ops.read_mac_addr(hw);
 		if (err) {

drivers/net/ixgbevf/ixgbevf_main.c

@@ -2229,7 +2229,7 @@ static int __devinit ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 	if (err) {
 		dev_info(&pdev->dev,
 		         "PF still in reset state, assigning new address\n");
-		random_ether_addr(hw->mac.addr);
+		dev_hw_addr_random(adapter->netdev, hw->mac.addr);
 	} else {
 		err = hw->mac.ops.init_hw(hw);
 		if (err) {