[XL] Change in coreboot[main]: soc/intel/xeon-sp/spr: Hook up public FSP bin and headers

[Shuo Liu (Code Review)]

Attention is currently required from: Angel Pons, Arthur Heymans, Chen, Gang C, Christian Walter, David Hendricks, Fabian Meyer, Intel coreboot Reviewers, Jincheng Li, Johnny Lin, Jonathan Zhang, Lean Sheng Tan, Nico Huber, Patrick Rudolph, Srinidhi N Kaushik, Tim Chu.

Shuo Liu has posted comments on this change by Arthur Heymans. ( https://review.coreboot.org/c/coreboot/+/80360?usp=email )

Change subject: soc/intel/xeon-sp/spr: Hook up public FSP bin and headers
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Patch Set 5:

(1 comment)

Patchset:

PS5: 
Arthur and all, the FSP repo update is upcoming, and here we updated the coreboot changes accordingly in parallel. But we still need to wait till the FSP repo update completes to move ahead. Thanks!