[PATCH] atyfb c99 fix

- fix this:

  drivers/video/aty/xlinit.c: In function `atyfb_xl_init':
  drivers/video/aty/xlinit.c:256: warning: ISO C90 forbids mixed declarations and code

- repair some kooky coding style

- Use ARRAY_SIZE()

Cc: Tom 'spot' Callaway <tcallawa@redhat.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>