This rewrites the IXP4xx GPIO bindings to use YAML schema,
and adds two new properties to enable fixed clock output on
pins 14 and 15.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
