drm/amdgpu/powerplay/smu7: use proper dep table for mclk

For mclk od, use the vdd dependency on mclk table.  Looks
like a cut and paste typo.

Reviewed-by: Rex <Zhu&lt;rezhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>