[WIP] Add OrangePi Zero2

[halamix2]

• Add OrangePi Zero2
• build BL31 from commit TrustedFirmware-A/trusted-firmware-a@f340f3d

Known issue:

• Last Update field is locale-sensitive, try to use English - waiting for Fix date generation on non-english locale systems #8
• Not yet tested, Rune wasn't made to work with forks of the firmware repository, or local files

[halamix2]

Hmm, there are no arm64 devices in the u-boot/manifest.json file, should I add this board there anyway?

[kallisti5]

Hmm, there are no arm64 devices in the u-boot/manifest.json file, should I add this board there anyway?

yeah, feel free to add a new arm64 board and just label the architecture "arm64".

[kallisti5]

Not yet tested, Rune wasn't made to work with forks of the firmware repository, or local files

ooh. This is a good point tbh.. We should add support for a local json inventory to rune.

[halamix2]

This firmware (as well as few running on an Allwinner SoC) requires some prerequisites (a built bl31.bin file and exported BL31 env with path to that file), should this be documented somewhere?

[halamix2]

ah, this PR will have to wait
Haiku ARM64 port doesn't even boot under qemu properly, and the OrangePi Zero 2 u-boot only compiles for arm64 and not arm