[M] Change in coreboot[main]: security/tpm: support compiling in multiple TPM drivers

[Julius Werner (Code Review)]

Attention is currently required from: Arthur Heymans, Christian Walter, Felix Held, Fred Reitberger, Jason Glenesk, Jérémy Compostella, Krystian Hebel, Matt DeVillier, Michał Żygowski, Raul Rangel, Sergii Dmytruk.

Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69162?usp=email )

Change subject: security/tpm: support compiling in multiple TPM drivers
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Patch Set 39:

(1 comment)

File src/drivers/crb/tis.h:

PS38:
> Tried it, but those `tpm.h` are more like private headers. […]

Well, in that case you need to fix that anyway. Even if no file imports both headers at the same time, exported functions cannot have the same name or you'll get linker errors when you enable both drivers.