qcacld-3.0: Add mtrace logging for scan request

We are transitioning to new logging infrastructure
by using existing mtrace functionality.
Add new logging for complete scan request and response path.

Change-Id: Iab48b0f2a6ab9d0ec14e3110eb628b6d1731df53
CRs-Fixed: 2308237

core/sap/src/sap_api_link_cntl.c

@@ -1258,6 +1258,9 @@ void sap_scan_event_callback(struct wlan_objmgr_vdev *vdev,
 		return;
 	}
 
+	qdf_mtrace(QDF_MODULE_ID_SCAN, QDF_MODULE_ID_SAP, event->type,
+		   event->vdev_id, event->scan_id);
+
 	if (!util_is_scan_completed(event, &success))
 		return;