Currently this are getting blocked by the kernel.. these counters don't
seem to be the most useful ones, and to use them we'd have to somehow
probe the kernel by submitting cmdstream to write the selector regs and
see if that triggers a GPU fault. So let's just skip them.
Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>