cleanups for arch/m32r/kernel/io*.c.

- Fix ugly indentation.

- Change __inline__ to inline.

- Remove RCS ID strings.
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>