Bluetooth: Use %pMR in debug instead of batostr

Instead of old unsafe batostr function use %pMR print specifier
for printing Bluetooth addresses in debug and error statements.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 260821a..ebd2f57 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -334,7 +334,7 @@
 	struct sock *sk = sock->sk;
 	int err = 0;
 
-	BT_DBG("sk %p %s", sk, batostr(&sa->rc_bdaddr));
+	BT_DBG("sk %p %pMR", sk, &sa->rc_bdaddr);
 
 	if (!addr || addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;