[M] Change in coreboot[main]: payloads: Add leanefi payload

[Felix Singer (Code Review)]

Attention is currently required from: Alper Nebi Yasak, Arthur Heymans, Benjamin Doron, CoolStar, David Hendricks, David Milosevic, Jan Samek, Lean Sheng Tan, Martin L Roth, Maximilian Brune, Patrick Rudolph, Paul Menzel, Simon Glass.

Felix Singer has posted comments on this change by Maximilian Brune. ( https://review.coreboot.org/c/coreboot/+/78913?usp=email )

Change subject: payloads: Add leanefi payload
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Patch Set 7: Code-Review+2

(4 comments)

Patchset:

PS7:
> I am still unhappy about this, particularly given all the work to make U-Boot function as a better coreboot payload. Should I give up on that? This really is not building bridges between the projects. This whole payload seems to make no sense to me, other than trying to avoid using U-Boot.

No, no one suggests that you should give up the work. I think the source of this discussion is just that something is needed now, while improving and/or changing U-Boot to fit the needs takes more time. I just re-read the whole discussion and people suggested many things you all can collaborate on in the long-term, and maybe even U-Boot will fit the needs from here in the future as well. Max even started with using U-Boot, but it just didn't fit the needs. So we should look at the big picture.
> A quick look at the source files shows no acknowledgement of U-Boot (BTW that is the correct spelling, bot u-boot). It should be a the top of each file, showing the file it came from.

AFAICS credits to related source files were added one day after your comment. https://review.coreboot.org/plugins/gitiles/leanefi/+/c4d60afb027dc7924034f0...

File payloads/external/leanefi/Kconfig:

PS7: 
Missing SPDX license identifier. Please add it in a follow-up.

File payloads/external/leanefi/Kconfig.name:

PS7: 
Missing SPDX license identifier. Please add it in a follow-up.

File payloads/external/leanefi/Makefile:

PS7: 
Missing SPDX license identifier. Please add it in a follow-up.