arm64: dts: qcom: sm8650: add LPASS LPI pin controller

arm64: dts: qcom: sm8650: add LPASS LPI pin controller

Add the Low Power Audio SubSystem Low Power Island (LPASS LPI) pin
controller device node as part of audio subsystem in Qualcomm SM8650
SoC.

Cc: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231204155746.302323-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>