dt-bindings: Input: remove msm-vibrator

The address referenced in this binding is within the Qualcomm Clock
namespace so let's drop the msm-vibrator bindings so that a more
generic solution can be used instead.  No one is currently using these
bindings so this won't affect any users.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200513013140.69935-2-masneyb@onstation.org


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>