[coreboot-gerrit] Change in coreboot[master]: mb/*/Kconfig: Factor out MAINBOARD_VENDOR

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/39179 )

Change subject: mb/*/Kconfig: Factor out MAINBOARD_VENDOR
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Patch Set 1:

I don't mind the unification. But first, should we discuss why it should
have a prompt? I assumed that this is tied to the code, and only SMBIOS
data etc. can be overridden.