drm/amdgpu/smu11.5: restore cclks in vangogh_set_performance_level

When we disable manual clock setting, we need to restore the cclks
as well as the gfxclk.

Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>