Add binding documentation for MT8365 Pin controller.
Signed-off-by: Fabien Parent <fparent@baylibre.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210519162409.3755679-1-fparent@baylibre.comSigned-off-by: Linus Walleij <linus.walleij@linaro.org>