ARM: dts: sun9i: Add missing #interrupt-cells to R_PIO pinctrl device node

The R_PIO device node is missing #interrupt-cells, which causes
interrupt parsing to fail to match it as a valid interrupt controller.

Add #interrupt-cells to it. Also remove the unnecesary #address-cells
and #size-cells.

Fixes: 1ac56a6d ("ARM: dts: sun9i: Add A80 R_PIO pin controller device
		      node")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/boot/dts/sun9i-a80.dtsi

@@ -898,8 +898,7 @@ r_pio: pinctrl@08002c00 {
 			resets = <&apbs_rst 0>;
 			gpio-controller;
 			interrupt-controller;
-			#address-cells = <1>;
-			#size-cells = <0>;
+			#interrupt-cells = <3>;
 			#gpio-cells = <3>;
 
 			r_ir_pins: r_ir {