mt76: mt7915: add missing flags in WMM parameter settings

Indicate the filled parameter to the firmware
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7915/mcu.c

@@ -2939,6 +2939,7 @@ int mt7915_mcu_set_tx(struct mt7915_dev *dev, struct ieee80211_vif *vif)
 		struct ieee80211_tx_queue_params *q = &mvif->queue_params[ac];
 		struct edca *e = &req.edca[ac];
 
+		e->set = WMM_PARAM_SET;
 		e->queue = ac + mvif->wmm_idx * MT7915_MAX_WMM_SETS;
 		e->aifs = q->aifs;
 		e->txop = cpu_to_le16(q->txop);