[M] Change in coreboot[master]: security/tpm: replace CONFIG(TPMx) checks with runtime check

[Yu-Ping Wu (Code Review)]

Attention is currently required from: Lance Zhao, Michał Żygowski, Christian Walter, Tim Wawrzynczak, Julius Werner, Krystian Hebel, Sergii Dmytruk.

Yu-Ping Wu has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69161 )

Change subject: security/tpm: replace CONFIG(TPMx) checks with runtime check
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/69161/comment/3258eb1c_032cd7a0 
PS1, Line 8: 
Please explain why this is needed.