dt-bindings: pinctrl: Convert stm32 pinctrl bindings to json-schema

Convert the STM32 pinctrl binding to DT schema format using json-schema.

Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2 files changed