Bluetooth: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

In this particular case, notice that I replaced the
"deliberate fall-through..." comment with a "fall through"
comment, which is what GCC is expecting to find.
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/bluetooth/bcm203x.c

@@ -121,7 +121,7 @@ static void bcm203x_complete(struct urb *urb)
 		}
 
 		data->state = BCM203X_LOAD_FIRMWARE;
-
+		/* fall through */
 	case BCM203X_LOAD_FIRMWARE:
 		if (data->fw_sent == data->fw_size) {
 			usb_fill_int_urb(urb, udev, usb_rcvintpipe(udev, BCM203X_IN_EP),

drivers/bluetooth/hci_ll.c

@@ -242,7 +242,7 @@ static void ll_device_want_to_wakeup(struct hci_uart *hu)
 		 * perfectly safe to always send one.
 		 */
 		BT_DBG("dual wake-up-indication");
-		/* deliberate fall-through - do not add break */
+		/* fall through */
 	case HCILL_ASLEEP:
 		/* acknowledge device wake up */
 		if (send_hcill_cmd(HCILL_WAKE_UP_ACK, hu) < 0) {