drm/amdgpu/smu13: always apply the powersave optimization

It can avoid margin issues in some very demanding applications.

Closes: drm/amd#3618
Link: drm/amd#3131


Fixes: c50fe289 ("drm/amdgpu/swsmu: always force a state reprogram on init")
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>