dec/tulip/de4x5: print MAC via printk format specifier

Print MAC/dev_addr via printk extended format specifier %pM
instead of custom code.
Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/dec/tulip/de4x5.c

@@ -5234,11 +5234,7 @@ de4x5_dbg_open(struct net_device *dev)
 
     if (de4x5_debug & DEBUG_OPEN) {
 	printk("%s: de4x5 opening with irq %d\n",dev->name,dev->irq);
-	printk("\tphysical address: ");
-	for (i=0;i<6;i++) {
-	    printk("%2.2x:",(short)dev->dev_addr[i]);
-	}
-	printk("\n");
+	printk("\tphysical address: %pM\n", dev->dev_addr);
 	printk("Descriptor head addresses:\n");
 	printk("\t0x%8.8lx  0x%8.8lx\n",(u_long)lp->rx_ring,(u_long)lp->tx_ring);
 	printk("Descriptor addresses:\nRX: ");