qcacld-3.0: Remove all wlan_reg_get_chan_enum instances

Use wlan_reg_get_chan_enum_for_freq API to get chan enum instead
of the unused wlan_reg_get_chan_enum API as part of regulatory
cleanup effort.

Change-Id: I66b933fdafb97b4eb16c9f2bf4cb0ca4c1232762
CRs-Fixed: 2885858

core/hdd/src/wlan_hdd_cfg80211.c

@@ -7180,17 +7180,16 @@ static int wlan_hdd_handle_restrict_offchan_config(struct hdd_adapter *adapter,
 	if (restrict_offchan == 1) {
 		enum policy_mgr_con_mode pmode =
 		policy_mgr_convert_device_mode_to_qdf_type(dev_mode);
-		int chan;
+		uint32_t freq;
 
 		u32 vdev_id = wlan_vdev_get_id(vdev);
 
 		wlan_vdev_obj_lock(vdev);
 		wlan_vdev_mlme_cap_set(vdev, WLAN_VDEV_C_RESTRICT_OFFCHAN);
 		wlan_vdev_obj_unlock(vdev);
-		chan = wlan_freq_to_chan(
-			policy_mgr_get_channel(hdd_ctx->psoc, pmode, &vdev_id));
-		if (!chan ||
-		    wlan_hdd_send_avoid_freq_for_dnbs(hdd_ctx, chan)) {
+		freq = policy_mgr_get_channel(hdd_ctx->psoc, pmode, &vdev_id);
+		if (!freq ||
+		    wlan_hdd_send_avoid_freq_for_dnbs(hdd_ctx, freq)) {
 			hdd_err("unable to send avoid_freq");
 			ret_val = -EINVAL;
 		}

core/mac/src/pe/lim/lim_utils.c

@@ -3711,6 +3711,8 @@ void lim_update_sta_run_time_ht_switch_chnl_params(struct mac_context *mac,
 						   tDot11fIEHTInfo *pHTInfo,
 						   struct pe_session *pe_session)
 {
+	qdf_freq_t chan_freq;
+
 	/* If self capability is set to '20Mhz only', then do not change the CB mode. */
 	if (!lim_get_ht_capability
 		    (mac, eHT_SUPPORTED_CHANNEL_WIDTH_SET, pe_session))
@@ -3731,8 +3733,10 @@ void lim_update_sta_run_time_ht_switch_chnl_params(struct mac_context *mac,
 		pe_debug("ch switch is in progress, ignore HT IE BW update");
 		return;
 	}
+	chan_freq = wlan_reg_legacy_chan_to_freq(mac->pdev,
+						 pHTInfo->primaryChannel);
 
-	if (wlan_reg_get_chan_enum(pHTInfo->primaryChannel) ==
+	if (wlan_reg_get_chan_enum_for_freq(chan_freq) ==
 	    INVALID_CHANNEL) {
 		pe_debug("Ignore Invalid channel in HT info");
 		return;