Drop WaGsvBringDownFreq on CHV.
When in RC6 requesting the min freq should be fine to bring the
voltage down.
Signed-off-by: NDeepak S <deepak.s@linux.intel.com>
Reviewed-by: NJesse Barnes <jbarnes@Virtuousgeek.org>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>