sata_promise: cleanups

This patch applies some trivial cleanups to sata_promise:
- repair whitespace damage
- correct comment at board_2057x_pata definition
- pull SATAII TX4 support code out to separate functions
- rename ata_nr to ata_no for consistency with libata's port_no
- remove some init-time debug printks (requested by Jeff)

This patch should cause no behavioural changes, except for
the removed printks.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
--
 drivers/ata/sata_promise.c |   56 ++++++++++++++++++---------------------------
 1 files changed, 23 insertions(+), 33 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>