mt76: fix boolreturn.cocci warnings

./drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c:172:8-9:WARNING:
return of 0/1 in function 'mt7663_usb_sdio_tx_status_data' with return
type bool

Return statements in functions returning bool should use true/false
instead of 1/0.

Generated by: scripts/coccinelle/misc/boolreturn.cocci
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7615/usb_sdio.c

@@ -169,7 +169,7 @@ bool mt7663_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update)
 	mt7615_mac_sta_poll(dev);
 	mt7615_mutex_release(dev);
 
-	return 0;
+	return false;
 }
 EXPORT_SYMBOL_GPL(mt7663_usb_sdio_tx_status_data);