[S] Change in coreboot[master]: src/arch/x86 Add CPU frequency APIs

[Wonkyu Kim (Code Review)]

Wonkyu Kim has abandoned this change. ( https://review.coreboot.org/c/coreboot/+/74389?usp=email )

Change subject: src/arch/x86 Add CPU frequency APIs
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Abandoned

Create new CL https://review.coreboot.org/c/coreboot/+/76123