drm/amdgpu: move ring helpers to amdgpu_ring.h

Keep them where they belong.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
2 files changed