drm/amd/powerplay: add the interfaces for getting and setting profiling dpm clock level

implement get_profiling_clk_mask and force_clk_levels for forcing dpm clk to limit value.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>