dt-bindings: input: iqs7222: Add support for IQS7222A v1.13+

IQS7222A revisions 1.13 and later widen the gesture multiplier from
x4 ms to x16 ms; update the binding accordingly.

As part of this change, refresh the corresponding properties in the
example as well.

Fixes: 44dc42d2 ("dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/Y1SRaVGwj30z/g6r@nixie71


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