drm/amd/powerplay: add function print_clk_levels for navi10

add sysfs interface of print_clk_levels sysfs for navi10.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
4 files changed