mt76: redefine mt76_for_each_q_rx to adapt mt7986 changes

Check ndesc of q_rx to avoid potential hole in iteration.
This is an intermediate patch to add mt7986 support.

Signed-off-by: Sujuan Chen <sujuan.chen@mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao@mediatek.com>
Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt76.h

@@ -908,8 +908,8 @@ static inline u16 mt76_rev(struct mt76_dev *dev)
 #define mt76_queue_reset(dev, ...)	(dev)->mt76.queue_ops->reset_q(&((dev)->mt76), __VA_ARGS__)
 
 #define mt76_for_each_q_rx(dev, i)	\
-	for (i = 0; i < ARRAY_SIZE((dev)->q_rx) && \
-		    (dev)->q_rx[i].ndesc; i++)
+	for (i = 0; i < ARRAY_SIZE((dev)->q_rx); i++)	\
+		if ((dev)->q_rx[i].ndesc)
 
 struct mt76_dev *mt76_alloc_device(struct device *pdev, unsigned int size,
 				   const struct ieee80211_ops *ops,