[M] Change in coreboot[main]: util/sconfig: Allow to specify multiple chip base paths

[Nico Huber (Code Review)]

Attention is currently required from: Jakub Czapiga, Jan Dabros, Martin L Roth.

Nico Huber has posted comments on this change by Jakub Czapiga. ( https://review.coreboot.org/c/coreboot/+/70701?usp=email )

Change subject: util/sconfig: Allow to specify multiple chip base paths
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Patch Set 8:

(1 comment)

Patchset:

PS8: 
Not sure if I fully understood the problem. In case this is still an issue:
We used to have macro checks in header files to exclude certain things for
specific languages (C / assembler / ASL). Maybe worth looking into.

Also, if FSP etc. headers are leaking into general coreboot code, that
should probably be avoided locally.