Change in coreboot[master]: soc/intel/common: Add IOE P2SB for TCSS

[John Zhao (Code Review)]

Attention is currently required from: Patrick Rudolph.
Hello Patrick Rudolph,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/62721

to look at the new patch set (#2).

Change subject: soc/intel/common: Add IOE P2SB for TCSS
......................................................................

soc/intel/common: Add IOE P2SB for TCSS

Meteor Lake has the IOE Die for TCSS. This change adds the IOE P2SB
sideband access and exposes API for TCSS usage.

BUG=b:213574324
TEST=Build platforms coreboot images successfully.

Change-Id: I01f551b6e1f50ebdc1cef2ceee815a492030db19
Signed-off-by: John Zhao 
---
M src/soc/intel/common/block/include/intelblocks/p2sb.h
M src/soc/intel/common/block/p2sb/Kconfig
M src/soc/intel/common/block/p2sb/Makefile.inc
A src/soc/intel/common/block/p2sb/ioe_p2sb.c
M src/soc/intel/common/block/p2sb/p2sb.c
5 files changed, 74 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/21/62721/2