Improve GPU debug reports

[System64fumo]

Describe your PR, what does it fix/add?

Instead of using weird "hacks" to get GPU information, Just get whatever libdrm reports.

Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)

At the moment this uses /dev/dri/card0. This implementation is not as verbose as before, Card model is not shown, unaware of a way to show it.

Is it ready for merging, or does it need work?

I'd say it's ready i guess.