drm/amdgpu: remove experimental flag from arcturus

This has been stable for a while.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2020-11-16 10:10:52 -05:00
commit 12c5365ea6