drm/amdgpu: drop status query/reset for GCEA 9.4.3 and MMEA 1.8

PMFW will be responsible for them.

v2: remove query interfaces.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>