intel/bd82x6x: Replace magic IOBP constants with known names

IOBP (I/O Buffer Programming) is an interface (indirect addresses space)
in the RCBA that is used to configure the high speed serial lanes on the
PCH, that are used for PCIe, USB3 and SATA.

This patch replaces the offsets in RCBA with the defines from pch.h, gives
the access functions and their parameters useful names and replaces two
magic addresses in IOBP space with their defines.

Change-Id: I91a828ed076ca10733b47db876fabf5adaa63638
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/16214
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

0 files changed, 0 insertions, 0 deletions