qcacld-3.0: Reset sap_radar_found_status flag before start sap

"sap_radar_found_status" is used to check Radar event detected
or not in CAC wait state. Clear "sap_radar_found_status" before
SAP starts to avoid the stale value saved in previous sap start or
CSA. This can happen when the SAP is restart state and get
"stop ap" request from userspace. The invalid value will
cause the wlansap_start_beacon_req retrun without deliver start
beacon msg and cause the no beacon in OTA.

Change-Id: I6336510881333e2775c29dcc167a77d5d745ace9
CRs-Fixed: 3085312

core/sap/src/sap_fsm.c

@@ -2731,6 +2731,10 @@ static QDF_STATUS sap_goto_starting(struct sap_context *sap_ctx,
 			     eSAP_CHANNEL_CHANGE_EVENT,
 			     (void *)eSAP_STATUS_SUCCESS);
 	sap_dfs_set_current_channel(sap_ctx);
+	/* Reset radar found flag before start sap, the flag will
+	 * be set when radar found in CAC wait.
+	 */
+	mac_ctx->sap.SapDfsInfo.sap_radar_found_status = false;
 
 	sap_debug("session: %d", sap_ctx->sessionId);
 
@@ -3093,6 +3097,7 @@ static QDF_STATUS sap_fsm_state_starting(struct sap_context *sap_ctx,
 							       mac_handle);
 			} else {
 				sap_debug("skip cac timer");
+				mac_ctx->sap.SapDfsInfo.sap_radar_found_status = false;
 				/*
 				 * If hostapd starts AP on dfs channel,
 				 * hostapd will wait for CAC START/CAC END