dt-bindings: pinctrl: qcom,sm8250: use common TLMM pin schema

The common Qualcomm TLMM pin controller schema for pin mux and config
already brings requirement of function for gpio pins and the definition
of drive-strength.

Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221016172212.49105-13-krzysztof.kozlowski@linaro.org


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