drm/amd/pm: Fix smuv13.0.6 current clock reporting

When current clock is equal to max dpm level clock, the level is not
indicated correctly with *. Fix by comparing current clock against dpm
level value.

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.7.x