[coreboot-gerrit] Change in coreboot[master]: libpayload/keyboard: Revise scancode set and translation config

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/46724 )

Change subject: libpayload/keyboard: Revise scancode set and translation config
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Patch Set 2:

Hey folks, I hope I figured things out now. Would be nice to get
this tested as much as possible, especially on the Chromebooks
(Drallion?) that needed the PC_KEYBOARD_AT_TRANSLATED Kconfig.

So far I tested only QEMU. Will check on some laptops soon.

There is also a follow up that I don't deemed necessary. In
theory keyboards that don't allow switching the scancode set
might exist. But as long as we don't have any or can set the
correct translation mode in coreboot, I guess we can keep it
unmerged.