arm64: dts: qcom: sm6115-pro1x: Add PCA9534 IO Expander

arm64: dts: qcom: sm6115-pro1x: Add PCA9534 IO Expander

F(x)tec Pro1X comes with PCA9534 IO Expander, it is used for enabling
touch screen VDD/VDDIO and keyboard's caps lock LED.

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Dang Huynh <danct12@riseup.net>
Reviewed-by: Caleb Connolly <caleb.connolly@linaro.org>
Link: https://lore.kernel.org/r/20240731-qx1050-feature-expansion-v3-2-b945527fa5d2@riseup.net
[bjorn: Dropped unnecessary comment in i2c1]
Signed-off-by: Bjorn Andersson <andersson@kernel.org>