uwb: use '%pM' format to print MAC address

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/uwb/address.c b/drivers/uwb/address.c
index 9733213..8739c4f 100644
--- a/drivers/uwb/address.c
+++ b/drivers/uwb/address.c
@@ -363,10 +363,7 @@
 {
 	size_t result;
 	if (type)
-		result = scnprintf(buf, buf_size,
-				  "%02x:%02x:%02x:%02x:%02x:%02x",
-				  addr[0], addr[1], addr[2],
-				  addr[3], addr[4], addr[5]);
+		result = scnprintf(buf, buf_size, "%pM", addr);
 	else
 		result = scnprintf(buf, buf_size, "%02x:%02x",
 				  addr[1], addr[0]);