ARM: dts: qcom: msm8974-klte: Add gpio expander chip

The Samsung Galaxy S5 has a GPIO Expander chip, the PCAL6416A with 16
ports on a i2c bus. These pins are used for WiFi, NFC, IR among other
things.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
Link: https://lore.kernel.org/r/20200920144859.813032-6-iskren.chernev@gmail.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>