pinctrl: Add bindings for ARTPEC-6 pinmux

Add the bindings for the pinmux functions in the
ARTPEC-6 SoC, including bias and drive strength.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2 files changed