qcacld-3.0: Fix invalid frequency in CSA

API sap_indicate_radar needs to return sap current
frequency instead of channel.

Change-Id: I62a4aae0604b11587a14d17d4c641262b8019ab3
CRs-Fixed: 2900489

core/sap/src/sap_fsm.c

@@ -3560,7 +3560,7 @@ qdf_freq_t sap_indicate_radar(struct sap_context *sap_ctx)
 		mac->sap.SapDfsInfo.csaIERequired = true;
 
 	if (mac->mlme_cfg->dfs_cfg.dfs_disable_channel_switch)
-		return wlan_reg_freq_to_chan(mac->pdev, sap_ctx->chan_freq);
+		return sap_ctx->chan_freq;
 
 	/* set the Radar Found flag in SapDfsInfo */
 	mac->sap.SapDfsInfo.sap_radar_found_status = true;