The pinctrl device is also an interrupt controller for external
interrupts. Add the missing #interrupt-cells property.

Also remove the unused #address-cells property.
Signed-off-by: NChen-Yu Tsai <wens@csie.org>
[hdegoede@redhat.com: make the same change for sun4i, sun5i and sun6i]
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>