Rework and fix queue reset for gfx7-gfx10

[Christian König]

Hi guys,

I finally found time to work on queue reset a bit more and also gave it
some more testing.

The per VMID reset actually seems to work 100% reliable at least on gfx9.

What still could be is that an application is using multiple VMIDs on the
graphics ring or that we re-use the same VMID for a different application.
Preventing this will need some more work on the VMID management.

The compute queue reset as well as the gfx11 and gfx12 code unfortunately
still has some calls to amdgpu_bo_reserv/amdgpu_bo_kmap in their path
which are totally illegal inside the reset handling, but that can be fixed
later on.

Please test, comment and review,
Christian.