wcn36xx: Use HW_VALUE_CHANNEL macro to get channel number

Uses HW_VALUE_CHANNEL() to extract the channel number from a
struct ieee80211_channel->hw_value. Once done we can use the upper bits of
the hw_value to encode PHY related data.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910150708.2179043-3-bryan.odonoghue@linaro.org

drivers/net/wireless/ath/wcn36xx/smd.c

@@ -773,8 +773,10 @@ int wcn36xx_smd_start_hw_scan(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 
 	msg_body->num_channel = min_t(u8, req->n_channels,
 				     sizeof(msg_body->channels));
-	for (i = 0; i < msg_body->num_channel; i++)
-		msg_body->channels[i] = req->channels[i]->hw_value;
+	for (i = 0; i < msg_body->num_channel; i++) {
+		msg_body->channels[i] =
+			HW_VALUE_CHANNEL(req->channels[i]->hw_value);
+	}
 
 	msg_body->header.len -= WCN36XX_MAX_SCAN_IE_LEN;