ARM: dts: sunxi: Fix #interrupt-cells for PIO in H3

pinctrl-sunxi uses 3 cells to describe interrupt, not 2. It's bank
number, pin number and flags.
Signed-off-by: NKrzysztof Adamski <k@japko.eu>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun8i-h3.dtsi

@@ -359,7 +359,7 @@
 			gpio-controller;
 			#gpio-cells = <3>;
 			interrupt-controller;
-			#interrupt-cells = <2>;
+			#interrupt-cells = <3>;
 
 			uart0_pins_a: uart0@0 {
 				allwinner,pins = "PA4", "PA5";