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

[Sergii Dmytruk (Code Review)]

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

Sergii Dmytruk 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 38:

(2 comments)

File src/drivers/crb/tis.h:

PS38:
> nit: rather than making new headers everywhere I think these could also just go into the various tpm […]

Tried it, but those `tpm.h` are more like private headers.  CRB and SPI TPMs define identically named functions/structure and can't be included at the same time as is.

File src/security/tpm/tss/tss.c:

https://review.coreboot.org/c/coreboot/+/69162/comment/99104389_3e0c52b2 :
PS38, Line 36: DRIVER_TIS_DEFAULT
> I don't think this is correct for the Atmel case? I think `CONFIG(I2C_TPM)` is the right one to cove […]

Done