fsdev/virtfs-proxy-helper: Use g_mkdir()

Use g_mkdir() to create a directory on all platforms.

Signed-off-by: Bin Meng <bin.meng@windriver.com>
Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <20220927110632.1973965-27-bmeng.cn@gmail.com>
Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>

fsdev/virtfs-proxy-helper.c

@@ -10,6 +10,7 @@
  */
 
 #include "qemu/osdep.h"
+#include <glib/gstdio.h>
 #include <sys/resource.h>
 #include <getopt.h>
 #include <syslog.h>
@@ -639,7 +640,7 @@ static int do_create_others(int type, struct iovec *iovec)
         if (retval < 0) {
             goto err_out;
         }
-        retval = mkdir(path.data, mode);
+        retval = g_mkdir(path.data, mode);
         break;
     case T_SYMLINK:
         retval = proxy_unmarshal(iovec, offset, "ss", &oldpath, &path);