drm/amd/powerplay: add DPM running checking back

This patch adds DPM running checking back, because the DPM issue is
fixed.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1 file changed