[libata] ata_piix: attempt to fix ICH8 support

Take into account the fact that ICH8 changed the register layout of
the MAP and PCS register bits.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik 2006-07-11 11:57:44 -04:00
commit 08f12edc33