mt76: mt7603: clear the service period on releasing PS filtered packets

These packets have no txwi entry in the ring, so tracking via tx status does
not work. To prevent PS poll requests from being unanswered, end the service
period right away
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7603/main.c

@@ -416,6 +416,9 @@ mt7603_release_buffered_frames(struct ieee80211_hw *hw,
 	}
 	spin_unlock_bh(&dev->ps_lock);
 
+	if (!skb_queue_empty(&list))
+		ieee80211_sta_eosp(sta);
+
 	mt7603_ps_tx_list(dev, &list);
 
 	if (nframes)