vsprintf.h: include <linux/types.h>

This header uses ulong, size_t, loff_t.
Include <linux/types.h> to make this header self-contained.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

include/vsprintf.h

@@ -9,6 +9,7 @@
 #define __VSPRINTF_H
 
 #include <stdarg.h>
+#include <linux/types.h>
 
 ulong simple_strtoul(const char *cp, char **endp, unsigned int base);