mt76x2: fix tssi initialization for 5GHz band

Fix mcu initial configuration for tssi calibration on 5GHz band

Fixes: 7bc04215 ("mt76: add driver code for MT76x2e")
Signed-off-by: NLorenzo Bianconi <lorenzo.bianconi@redhat.com>
Acked-by: NFelix Fietkau <nbd@nbd.name>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/mediatek/mt76/mt76x2_phy.c

@@ -180,7 +180,7 @@ mt76x2_phy_tssi_init_cal(struct mt76x2_dev *dev)
 	if (mt76x2_channel_silent(dev))
 		return false;
 
-	if (chan->band == NL80211_BAND_2GHZ)
+	if (chan->band == NL80211_BAND_5GHZ)
 		flag |= BIT(0);
 
 	if (mt76x2_ext_pa_enabled(dev, chan->band))