Change in coreboot[master]: arch/x86/postcar: Set up postcar MTRR in C code

[Arthur Heymans (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Subrata Banik, Marshall Dawson, Kyösti Mälkki, Aaron Durbin, Felix Held.
Hello build bot (Jenkins), Jason Glenesk, Raul Rangel, Subrata Banik, Marshall Dawson, Kyösti Mälkki, Aaron Durbin, Felix Held,

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

https://review.coreboot.org/c/coreboot/+/54299

to look at the new patch set (#12).

Change subject: arch/x86/postcar: Set up postcar MTRR in C code
......................................................................

arch/x86/postcar: Set up postcar MTRR in C code

Setting up postcar MTRRs is done when invd is already called so there
is no reason to do this in assembly anymore.

TESTED on Qemu that MTRRs are properly set.

Change-Id: I5ec10e84118197a04de0a5194336ef8bb049bba4
Signed-off-by: Arthur Heymans 
---
M src/arch/x86/exit_car.S
M src/arch/x86/include/arch/romstage.h
M src/arch/x86/postcar.c
M src/arch/x86/postcar_loader.c
M src/cpu/x86/mtrr/Makefile.inc
M src/cpu/x86/mtrr/earlymtrr.c
M src/drivers/amd/agesa/mtrr_fixme.c
M src/drivers/amd/agesa/romstage.c
M src/include/cpu/x86/mtrr.h
M src/soc/amd/common/block/cpu/noncar/early_cache.c
M src/soc/amd/stoneyridge/romstage.c
11 files changed, 87 insertions(+), 220 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/99/54299/12