dt-bindings: pinctrl: qcom,sc8280xp: fix indentation in example (remaining piece)

Bindings example should be indented with 4-spaces.  Previous adjustment
missefd one spot.

Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221016170035.35014-35-krzysztof.kozlowski@linaro.org


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