[S] Change in coreboot[main]: drivers/intel/fsp2_0: Initialize CPUs only when FSP-S has completed

[Jérémy Compostella (Code Review)]

Attention is currently required from: Andrey Petrov, Ronak Kanabar, Shuo Liu, Subrata Banik.

Jérémy Compostella has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/80691?usp=email )

Change subject: drivers/intel/fsp2_0: Initialize CPUs only when FSP-S has completed
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Patch Set 3:

(1 comment)

File src/drivers/intel/fsp2_0/silicon_init.c:

https://review.coreboot.org/c/coreboot/+/80691/comment/6ab48492_88b33ebd :
PS3, Line 204: USE_INTEL_FSP_MP_INIT
> side question: what is the motivation of not using coreboot using MP init and using `USE_INTEL_FSP_M […]

Since this option exist, the idea of this patch is to keep working for new platforms. I indeed noticed that no configuration are using it. if we think this options does not make sense, shouldn't we just remove it altogether ?