Fix compilation warning

Pcie40Applications/main_pcie40_reload.c

-#define _GNU_SOURCE
-#include <stdlib.h>
+#include <cstdio>
+#include <linux/limits.h>
 #include <unistd.h>
-#include <stdio.h>
-#include <signal.h>
-#include <string.h>
-#include <limits.h>
 #include <libgen.h>
 
 int main(int argc, char *argv[])