Revert "cmhw: another rework to Glove Mode switch"

This reverts commit 5a823de6ecf54f213641a1f5793232f808859a2a.
Revert "Revert "cmhw: another rework to Glove Mode switch""

This reverts commit 4b864b63a8ce7e4a3661eb48a05f70ed6f703d42.
[1/2] cmhw: major logic change in Glove Mode switch

Previously signal_disparity was used, now we use finger_threshold, which
allows to make a more noticeable switching.