Change in coreboot[master]: payloads: Add UefiPayload support to ARM64 platforms

[Rex-BC Chen (Code Review)]

Attention is currently required from: Hung-Te Lin, Martin Roth, Paul Menzel, Julius Werner, Marty E. Plummer.
Rex-BC Chen has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/58054 )

Change subject: payloads: Add UefiPayload support to ARM64 platforms
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Patch Set 8: Code-Review+1

(1 comment)

Patchset:

PS6:
> When buliding without cros env, you have to build the toolchain first like what the error msg said:  […]

I also encounter misleading-indentation error and fix in below patch:
https://review.coreboot.org/c/coreboot/+/58136