wifi: ath12k: add channel 2 into 6 GHz channel list

Add support for the 6 GHz channel 2 with center frequency
5935 MHz and operating class 136 per IEEE Std 802.11ax-2021,
Table E-4.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
Signed-off-by: Pradeep Kumar Chitrapu <quic_pradeepc@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240508173655.22191-2-quic_pradeepc@quicinc.com

drivers/net/wireless/ath/ath12k/core.h

@@ -450,7 +450,7 @@ struct ath12k_sta {
 #define ATH12K_MIN_5G_FREQ 4150
 #define ATH12K_MIN_6G_FREQ 5925
 #define ATH12K_MAX_6G_FREQ 7115
-#define ATH12K_NUM_CHANS 100
+#define ATH12K_NUM_CHANS 101
 #define ATH12K_MAX_5G_CHAN 173
 
 enum ath12k_hw_state {

drivers/net/wireless/ath/ath12k/mac.c

@@ -91,6 +91,10 @@ static const struct ieee80211_channel ath12k_5ghz_channels[] = {
 };
 
 static const struct ieee80211_channel ath12k_6ghz_channels[] = {
+	/* Operating Class 136 */
+	CHAN6G(2, 5935, 0),
+
+	/* Operating Classes 131-135 */
 	CHAN6G(1, 5955, 0),
 	CHAN6G(5, 5975, 0),
 	CHAN6G(9, 5995, 0),