Change freertos include used to fix the macro not found

Author: jmartinez-silabs

examples/platform/silabs/SoftwareFaultReports.cpp

@@ -17,7 +17,7 @@
  */
 
 #include "SoftwareFaultReports.h"
-#include "FreeRTOS.h"
+#include "FreeRTOSConfig.h"
 #include "silabs_utils.h"
 #include <app/clusters/software-diagnostics-server/software-diagnostics-server.h>
 #include <app/util/attribute-storage.h>