drivers/net/octeon/octeon_mgmt.c: use %pM to shown MAC address

Use the %pM kernel extension to display the MAC address.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/octeon/octeon_mgmt.c b/drivers/net/octeon/octeon_mgmt.c
index 050538b..6fd8789 100644
--- a/drivers/net/octeon/octeon_mgmt.c
+++ b/drivers/net/octeon/octeon_mgmt.c
@@ -1119,11 +1119,8 @@
 
 	if (p->port >= octeon_bootinfo->mac_addr_count)
 		dev_err(&pdev->dev,
-			"Error %s: Using MAC outside of the assigned range: "
-			"%02x:%02x:%02x:%02x:%02x:%02x\n", netdev->name,
-			netdev->dev_addr[0], netdev->dev_addr[1],
-			netdev->dev_addr[2], netdev->dev_addr[3],
-			netdev->dev_addr[4], netdev->dev_addr[5]);
+			"Error %s: Using MAC outside of the assigned range: %pM\n",
+			netdev->name, netdev->dev_addr);
 
 	if (register_netdev(netdev))
 		goto err;