mt76: mt7663: disable RDD commands

Disable dfs RDD mcu commands for mt7663 driver since they are not
currently supported by the 7663 firmware
Co-developed-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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

@@ -2047,6 +2047,9 @@ int mt7615_dfs_init_radar_detector(struct mt7615_phy *phy)
 	bool ext_phy = phy != &dev->phy;
 	int err;
 
+	if (is_mt7663(&dev->mt76))
+		return 0;
+
 	if (dev->mt76.region == NL80211_DFS_UNSET) {
 		phy->dfs_state = -1;
 		if (phy->rdd_state)