[coreboot-gerrit] Change in coreboot[master]: sb/intel: Factor out early_smbus.c for ICH7 and newer

[Angel Pons (Code Review)]

Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/40271 )

Change subject: sb/intel: Factor out early_smbus.c for ICH7 and newer
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Patch Set 2:
> Patch Set 2:
> > Patch Set 2:
> > > Patch Set 2:
> > >
> > > So some devices have access to `smbus_write_byte()` now?
> >
> > Some platforms will have that wrapper, yes. It was possible to write to SMBus before though, by directly using the smbus functions.
>
> Yeah, I’d just mention it, when people look through the diff (some diffstat is smaller).

I plan on splitting this as requested by Nico anyway.