[PATCH] Shared zlib include fix for 2.5 and 2.4-ac.

This switches linux/zlib.h to include zconf.h as <linux/zconf.h> instead of
just "zconf.h".

include/linux/zlib.h

@@ -31,7 +31,7 @@
 #ifndef _ZLIB_H
 #define _ZLIB_H
 
-#include "zconf.h"
+#include <linux/zconf.h>
 
 #ifdef __cplusplus
 extern "C" {