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

[Hung-Te Lin (Code Review)]

Attention is currently required from: Martin Roth, Rex-BC Chen, Paul Menzel, Julius Werner, Marty E. Plummer.
Hung-Te Lin 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 6:

(2 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/58054/comment/7c045dd9_21185744 
PS6, Line 9: is
> We only try on 8195, so I am not sure for this.

ok then maybe

Some ARM platforms (e.g., MT8195) are

Patchset:

PS6:
> We try to modify related files to build with Cherry build environment for ARM64. […]

Please list "related files" with details.

Meanwhile, you should make sure it also builds with pure Coreboot infra, not relying on chromeos build systems (if the 'cherry build environment' is actually cros).