Build for target architecture ARM64/aarch64

[emk2203]

If possible and not too much work, please supply a build for the ARM64/aarch64 architecture as well. The armv7-unknown-linux-gnueabihf binary doesn't work here, it errors out with -bash: ./dysk: cannot execute: required file not found.

Future ARM generations will be more and more ARM64, so the support of it will be future-proof.
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[Canop]

Can you check #63 looks right ?

[emk2203]

I looked at the compile-all-targets.sh and this looked good. Waiting for the release to see if everything is OK. I can test it on two different systems, so it should work for everyone if it works for me.

[Canop]

I should merge #64 soon, then make a release with all those binaries

[emk2203]

I can confirm that the aarch64 version works at least with two different chips (Amlogic S905X3 and Rockchip RK3568B2).

Looks good.