[coreboot-gerrit] Change in ...coreboot[master]: soc/intel/braswell: Add support for FSP MR2

[Frans Hendriks (Code Review)]

Frans Hendriks has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/29661 )

Change subject: soc/intel/braswell: Add support for FSP MR2
......................................................................

Patch Set 5:
> Patch Set 5:
>
> Maybe we should ping Intel to do something about it. Changing the signature just like that made the coreboot builds for Braswell boards useless if someone have built their image with latest FSP from the fsp submodule. The FSP binary should at least remain the same signature.

MR2 release is almost 3 years old. Would not expect Intel to perform updates on this.

The problem is that coreboot expects the 'old' signature and the third party FSP is based on MR2. Not sure which FSP is used on which mainboard. For this reason add config. If developer wants using latest FSP (signature) the config value must be enabled.