[MPlayer-dev-eng] Fix implicit declaration of realloc, calloc and free for gui/win32/playlist.c

[JonY]

Patch OK?

Index: gui/win32/playlist.c
===================================================================
--- gui/win32/playlist.c        (revision 27498)
+++ gui/win32/playlist.c        (working copy)
@@ -23,6 +23,7 @@

  #include <windows.h>
  #include <stdio.h>
+#include <stdlib.h>
  #include "mp_msg.h"
  #include "playlist.h"