net: convert print_mac to %pM

This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 0196a0d..68f908a 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -325,9 +325,7 @@
 
 	sg_init_table(sg, 2+MAX_SKB_FRAGS);
 
-	pr_debug("%s: xmit %p " MAC_FMT "\n", vi->dev->name, skb,
-		 dest[0], dest[1], dest[2],
-		 dest[3], dest[4], dest[5]);
+	pr_debug("%s: xmit %p %pM\n", vi->dev->name, skb, dest);
 
 	/* Encode metadata header at front. */
 	hdr = skb_vnet_hdr(skb);