Add `amdgpu` target to ecosystem page

[LegNeato]

Looks like this target was recently revived:

rust-lang/rust#134740

@Flakebi is it ok if I add it to https://rust-gpu.github.io/ecosystem/ or is it too early? Also, I'd love to chat with you about some rust & GPU related stuff but I can't find an email or twitter and I can't message you on github. Can you DM me or email me? My email is my first name at my last name dot com.

[Flakebi]

Hi!
I think it’s fine to mention amdgpu. The best place to link to is probably the tracking issue for now: rust-lang/rust#135024
Almost nothing is merged currently, but I have things working in a branch (linked in the tracking issue).

If you are on Zulip, you can DM me there (I’m Flakebi there as well) or I can send you a mail when I get home in the evening.