drm/amd/pm: correct the way to get the highest vddc

Populate the correct highest vddc setting on Polaris.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2020-09-25 14:27:16 +08:00 • committed by Alex Deucher
commit be56f22b62