linux-phytec-fsl

ARM: sun7i: Add the PIO controller node to the DTSI

The PIO controller is responsible for the GPIO/muxing/external
interrupts handling. Now that we have support for the A20 pin set in the
pinctrl driver, we can start using it in the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>