touchpad: re-enable hysteresis by default for all devices

touchpad: re-enable hysteresis by default for all devices

The removal of the hysteresis even on precise touchpads has led to
difficulties controlling the cursor in a few instances. Since 27078b2667d
we only have the hysteresis on Apple touchpads and the Lenovo *40 series and
later. Even on those do we see some positioning difficulties (bug 94379).

So restore the hysteresis by default again for all touchpads. In the future a
knob could be exposed for precision vs reactivity or something, but for now
the drawback of imprecise positioning does not outweigh the benefits we get
on those few devices.

https://bugs.freedesktop.org/show_bug.cgi?id=94379

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>