[XL] Change in coreboot[main]: soc/intel/xeon_sp: Add Granite Rapids initial codes

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Arthur Heymans, Chen, Gang C, Christian Walter, David Hendricks, Jincheng Li, Johnny Lin, Jonathan Zhang, Nico Huber, Patrick Rudolph, Paul Menzel, Shuo Liu, TangYiwei, Tim Chu.

Lean Sheng Tan has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/81316?usp=email )

Change subject: soc/intel/xeon_sp: Add Granite Rapids initial codes
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Patch Set 32: Code-Review+2