Added device tree binding documentation for Nuvoton Arbel BMC NPCM8XX
pinmux and GPIO controller.
Signed-off-by: Tomer Maimon <tmaimon77@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230828140849.21724-2-tmaimon77@gmail.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>