added headers for SuperH which automatically generate by update_all.py

base on kernel 2.6.27 arch/sh/include/asm/
diff --git a/libc/kernel/arch-sh/asm/io.h b/libc/kernel/arch-sh/asm/io.h
new file mode 100644
index 0000000..7730c15
--- /dev/null
+++ b/libc/kernel/arch-sh/asm/io.h
@@ -0,0 +1,22 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef __ASM_SH_IO_H
+#define __ASM_SH_IO_H
+
+#include <asm/cache.h>
+#include <asm/system.h>
+#include <asm/addrspace.h>
+#include <asm/machvec.h>
+#include <asm/pgtable.h>
+#include <asm-generic/iomap.h>
+
+#endif