[XS] Change in coreboot[master]: mb/google/nissa/var/joxer: Remove VBOOT_GSC_BOARD_ID config

[Reka Norman (Code Review)]

Attention is currently required from: Himanshu Sahdev, Julius Werner, Tarun Tuli.

Reka Norman has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75641?usp=email )

Change subject: mb/google/nissa/var/joxer: Remove VBOOT_GSC_BOARD_ID config
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Patch Set 1:

(1 comment)

File src/mainboard/google/brya/Kconfig:

https://review.coreboot.org/c/coreboot/+/75641/comment/48f8dce5_9be833af :
PS1, Line 295: config VBOOT_GSC_BOARD_ID
> don't we need/want to remove this config existence from `src/security/vboot`?

I think using a config to store the default value is fine even if we don't override it in practice. We do this for other parameters, e.g. all the key paths (VBOOT_ROOT_KEY, etc). But I can update the help text to make it clear that the specific board IDs don't need to be set in coreboot.

(+Julius to check this all makes sense.)