mt76: mt7615: add passive mode for hw scan

Introduce support for passive frequency scanning to mt7615_mcu_hw_scan

Tested-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

mt7615/mcu.c

@@ -2743,8 +2743,8 @@ int mt7615_mcu_hw_scan(struct mt7615_phy *phy, struct ieee80211_vif *vif,
 
 	req->seq_num = mvif->scan_seq_num | ext_phy << 7;
 	req->bss_idx = mvif->idx;
-	req->scan_type = 1;
-	req->probe_req_num = 2;
+	req->scan_type = sreq->n_ssids ? 1 : 0;
+	req->probe_req_num = sreq->n_ssids ? 2 : 0;
 	req->version = 1;
 	req->channel_type = 4;