mt76: mt7615: avoid use of ieee80211_tx_info_clear_status

It overwrites mt76_tx_cb data in the skb
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -1389,7 +1389,7 @@ static bool mt7615_mac_add_txs_skb(struct mt7615_dev *dev,
 		struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 
 		if (!mt7615_fill_txs(dev, sta, info, txs_data)) {
-			ieee80211_tx_info_clear_status(info);
+			info->status.rates[0].count = 0;
 			info->status.rates[0].idx = -1;
 		}