Change in coreboot[master]: mb/mainboard/herobrine: Initialize SPI FW for EC and TPM

[Shelley Chen (Code Review)]

Attention is currently required from: Ravi kumar, Paul Menzel, mturney mturney, Julius Werner, Rajesh Patil.
Shelley Chen has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50581 )

Change subject: mb/mainboard/herobrine: Initialize SPI FW for EC and TPM
......................................................................

Patch Set 88:

(1 comment)

File src/mainboard/google/herobrine/Kconfig:

https://review.coreboot.org/c/coreboot/+/50581/comment/45eae99b_8de3b424 
PS84, Line 66: 	default 0xC if BOARD_GOOGLE_HEROBRINE
> ...why wouldn't it? It's true exactly iff you're building for Herobrine (the reference board). […]

Sorry for not being clear.  I meant that the Herobrine reference board should be using I2C communication for TPM rather than SPI.  Only Hoglin/Piglin are using SPI with TPM.

Agree with the rest of the what Julius said.