[M] Change in coreboot[main]: soc/intel/pantherlake: Add core scaling factors read support

[Jérémy Compostella (Code Review)]

Jérémy Compostella has posted comments on this change by Jérémy Compostella. ( https://review.coreboot.org/c/coreboot/+/85554?usp=email )

Change subject: soc/intel/pantherlake: Add core scaling factors read support
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