aoe: remove private mac address format function

Add %pm to omit the colons when printing a mac address.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 1747dd2..2307a27 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -37,7 +37,7 @@
 
 	if (t == NULL)
 		return snprintf(page, PAGE_SIZE, "none\n");
-	return snprintf(page, PAGE_SIZE, "%012llx\n", mac_addr(t->addr));
+	return snprintf(page, PAGE_SIZE, "%pm\n", t->addr);
 }
 static ssize_t aoedisk_show_netif(struct device *dev,
 				  struct device_attribute *attr, char *page)