Change in coreboot[master]: soc/intel/common/cpu: Update COS mask calculation for NEM enhanced mode

[Shreesh Chhabbi (Code Review)]

Shreesh Chhabbi has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/43494 )

Change subject: soc/intel/common/cpu: Update COS mask calculation for NEM enhanced mode
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Patch Set 7: Code-Review+1

Verified on TGL-UP3 RVP with QS sample. This needs additional change for TGL to select USE_CAR_NEM_ENHANCED_V2 in soc kconfig. Patch: https://review.coreboot.org/c/coreboot/+/45094.