[coreboot-gerrit] Change in coreboot[master]: rules.h, thread.h, lib/cbfs: Add ENV_STAGE_SUPPORTS_COOP

[Julius Werner (Code Review)]

Attention is currently required from: Raul Rangel.
Julius Werner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59550 )

Change subject: rules.h, thread.h, lib/cbfs: Add ENV_STAGE_SUPPORTS_COOP
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Patch Set 1:

(1 comment)

File src/include/rules.h:

https://review.coreboot.org/c/coreboot/+/59550/comment/4d9803f1_2a900706 
PS1, Line 306: ENV_X86
Why check this explicitly? It currently only works on x86 but that's already modeled by the Kconfig, and we'll hopefully expand it some day.