Change in coreboot[master]: soc/intel: Backport SMRR locking support

[Angel Pons (Code Review)]

Attention is currently required from: Furquan Shaikh, Tim Wawrzynczak, Subrata Banik, Michael Niewöhner, Patrick Rudolph.
Hello build bot (Jenkins), Nico Huber, Furquan Shaikh, Tim Wawrzynczak, Subrata Banik, Arthur Heymans, Michael Niewöhner, Patrick Rudolph,

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

https://review.coreboot.org/c/coreboot/+/50936

to look at the new patch set (#3).

Change subject: soc/intel: Backport SMRR locking support
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soc/intel: Backport SMRR locking support

Backport commit 0cded1f116 (soc/intel/tigerlake: Add SMRR Locking
support) to other client platforms. The SMRR MSRs are core-scoped on
Skylake and Ice Lake, at least. Older platforms do not support SMRR
locking, but now there's seven copies of the same file in the tree. A
follow-up will deduplicate smmrelocate.c files into common CPU code.

I cannot test Jasper Lake nor Elkhart Lake, but they should still work.
As per documentation I do not have access to, Elkhart Lake seems to
support SMRR locking. However, Jasper Lake documentation is unclear.

Tested on Purism Librem Mini v1 (WHL-U i7-8565U), still boots and SMRR
MSRs have the same value on all cores/threads (i7-8565U supports HT).

Change-Id: Icbee0985b04418e83cbf41b81f00934f5a663e30
Signed-off-by: Angel Pons 
---
M src/soc/intel/cannonlake/smmrelocate.c
M src/soc/intel/elkhartlake/smmrelocate.c
M src/soc/intel/icelake/smmrelocate.c
M src/soc/intel/jasperlake/smmrelocate.c
M src/soc/intel/skylake/smmrelocate.c
5 files changed, 85 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/36/50936/3