Change in coreboot[master]: soc/intel/xeon_sp: Enable SMI handler

[Arthur Heymans (Code Review)]

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/46231 )

Change subject: soc/intel/xeon_sp: Enable SMI handler
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Patch Set 24:
> Patch Set 24:
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> (1 comment)
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> Does the TCO, gnvs, and smbsus changes belong in this patch? Maybe explain in the commit message if they do.

soc/intel/common has some dependencies which is what I suspect drove those changes. IDK if there is even TCO on these? GNVS is fully broken on this platform, but needs separate fixing (or actual implementing). No idea about smbus.

I have some local improvements I want to push soon, like less skx/cpx boilerplate + proper IED handling. So maybe hold off on merging for a day or two?