Talos (arm64) support

[ChickenIQ]

Talos is already supported on x86_64, but the option is missing on arm64.
This would be great and should be possible as Talos supports pxe booting on both architectures.

[antonym]

I enabled the menu option on arm64 here: 00cf90f

I think everything is in place to handle multi arch so give it a try on the development endpoint under the utilities menu and let me know if it works.

[antonym]

Tested on arm64 server and kernels load up as expected.