dt-bindings: pinctrl: qcom: drop minItems equal to maxItems

If minItems are missing, they are implicitly equal to maxItems.
Dropping redundant minItems simplifies a bit the binding.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20221016173625.53769-1-krzysztof.kozlowski@linaro.org


Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>