[XL] Change in coreboot[main]: mb/google/brox: Create new Brox baseboard

[Shelley Chen (Code Review)]

Attention is currently required from: Nick Vaccaro, Paul Menzel.

Shelley Chen has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78009?usp=email )

Change subject: mb/google/brox: Create new Brox baseboard
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Patch Set 11:

(3 comments)

File src/mainboard/google/brox/Kconfig:

https://review.coreboot.org/c/coreboot/+/78009/comment/d4e9aace_e6b8d31c :
PS9, Line 84: BOARD_GOOGLE_BASEBOARD_HADES
> You can get rid of checks for hades, hades has been deprecated and wouldn't be part of the brox fami […]

Done

https://review.coreboot.org/c/coreboot/+/78009/comment/484623a0_56592fb3 :
PS9, Line 85: BOARD_GOOGLE_BASEBOARD_HADES
> same

Done

https://review.coreboot.org/c/coreboot/+/78009/comment/c5f100d4_8b851764 :
PS9, Line 154: BOARD_GOOGLE_PIRRHA
> Is pirrha a Brox variant?  If not, this check should be deleted.

Done