From: Go Taniguchi <go@turbolinux.co.jp> (Turbolinx Inc.)

Change reg48 and reg54 in 8bit access and remove unused reg44.

Jeff acked ata_piix.c part.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>