dt-bindings: input: iqs7222: Correct minimum slider size

The minimum slider size enforced by the driver is 1 or 16 for the
IQS7222C or IQS7222A, respectively.

Fixes: 44dc42d2 ("dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C")
Signed-off-by: Jeff LaBundy <jeff@labundy.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/Y1SRU37t74wRvZv3@nixie71Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml

@@ -498,7 +498,7 @@ patternProperties:
 
       azoteq,slider-size:
         $ref: /schemas/types.yaml#/definitions/uint32
-        minimum: 0
+        minimum: 1
         maximum: 65535
         description:
           Specifies the slider's one-dimensional resolution, equal to the
@@ -687,6 +687,7 @@ allOf:
           properties:
             azoteq,slider-size:
               multipleOf: 16
+              minimum: 16
               maximum: 4080
 
             azoteq,top-speed: