Change in coreboot[master]: soc/amd/cezanne: add ACPI CPPC support for AMD

[Julian Schroeder (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Marshall Dawson, Julian Schroeder.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Marshall Dawson, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/56188

to look at the new patch set (#5).

Change subject: soc/amd/cezanne: add ACPI CPPC support for AMD
......................................................................

soc/amd/cezanne: add ACPI CPPC support for AMD

This leverages the existing Collaborative Processor Performance Control
(CPPC) support and adds CPPC init for AMD/Cezanne.

Signed-off-by: Julian Schroeder 
Change-Id: I94172f40c7fa4b7b89237fd382448e598da00fbb
---
M src/soc/amd/cezanne/Makefile.inc
M src/soc/amd/cezanne/acpi.c
A src/soc/amd/cezanne/cppc.c
A src/soc/amd/cezanne/include/soc/cppc.h
M src/soc/amd/cezanne/include/soc/msr.h
5 files changed, 216 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/88/56188/5