[coreboot-gerrit] Change in coreboot[master]: soc/intel/car: Add support for bootguard CAR

[Michał Żygowski (Code Review)]

Michał Żygowski has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/36682 )

Change subject: soc/intel/car: Add support for bootguard CAR
......................................................................

Patch Set 8: Code-Review-1

I have some successes with CB:38252. When I achieve some reliable and reproducible testing images with that change, I will help with this one. Since nobody tested it with Boot Guard, I will give a -1 temporarily since Gaggery reported some issues and to indicate untested code. Let's merge it in a state "it works".

It should be noted that the MSRs will return all 0s if the ACM is not loaded and Boot Guard disabled.