[M] Change in coreboot[main]: soc/amd: add PSP SMI handler stub

[Felix Held (Code Review)]

Attention is currently required from: Fred Reitberger, Jason Glenesk, Martin L Roth, Matt DeVillier, Varshit Pandya, ritul guru.

Hello Fred Reitberger, Jason Glenesk, Martin L Roth, Matt DeVillier, Varshit Pandya, ritul guru,

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

https://review.coreboot.org/c/coreboot/+/83739?usp=email

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

Change subject: soc/amd: add PSP SMI handler stub
......................................................................

soc/amd: add PSP SMI handler stub

The PSP can send SMIs to the x86 side to have the SMI handler service
requests from the PSP. This commit adds an empty PSP SMI handler; the
actual implementation is added in later patches to keep the patches
relatively small.

This patch is a slightly modified version of parts of CB:65523.

Test=When selecting SOC_AMD_COMMON_BLOCK_PSP_SMI, Mandolin still builds

Signed-off-by: Felix Held 
Signed-off-by: Ritul Guru 
Change-Id: I65989ff529d728cd9d2cd60b384295417bef77ad
---
M src/soc/amd/cezanne/smihandler.c
M src/soc/amd/common/block/include/amdblocks/psp.h
M src/soc/amd/common/block/psp/Kconfig
M src/soc/amd/common/block/psp/Makefile.mk
A src/soc/amd/common/block/psp/psp_smi.c
M src/soc/amd/common/block/psp/psp_smm.c
M src/soc/amd/genoa_poc/smihandler.c
M src/soc/amd/glinda/smihandler.c
M src/soc/amd/mendocino/smihandler.c
M src/soc/amd/phoenix/smihandler.c
M src/soc/amd/picasso/smihandler.c
11 files changed, 52 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/39/83739/2