[S] Change in coreboot[master]: [RFC]soc/intel/cannonlake: Use regular NEM for CAR

[Subrata Banik (Code Review)]

Attention is currently required from: Nico Huber, Tarun Tuli, Rizwan Qureshi, Arthur Heymans, Lean Sheng Tan.

Subrata Banik has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/74376 )

Change subject: [RFC]soc/intel/cannonlake: Use regular NEM for CAR
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Patch Set 1:

(1 comment)

Patchset:

PS1:
> > seems like MSR IA32_PQR_ASSOC still exists? or could be wrong?
>
> So not sure which MSR used in NEM_ENHANCED is actually resulting in a hang, but the bits in cpuid are clearly not working as indicator for their presence as they do work on some models where the cpuid bits are 0.

let me ask Intel is there is any CPUID or other MSR to know if eNEM is supported .