drm/amdgpu: Workaround to skip kiq ring test during ras gpu recovery

This is workaround, kiq ring test failed in suspend stage when do ras
recovery.

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