ARM: dts: sun8i-h3: Add R_PIO controller node to the dtsi

Add the corresponding device node for R_PIO on H3 to the dtsi. Support
for the controller was added in earlier commit.

Signed-off-by: Krzysztof Adamski <[e-mail]>
Acked-by: Linus Walleij <[e-mail]>
Signed-off-by: Maxime Ripard <[e-mail]>

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

···
 			compatible = "allwinner,sun6i-a31-clock-reset";
 			#reset-cells = <1>;
 		};
+
+		r_pio: pinctrl@01f02c00 {
+			compatible = "allwinner,sun8i-h3-r-pinctrl";
+			reg = <0x01f02c00 0x400>;
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&apb0_gates 0>;
+			resets = <&apb0_reset 0>;
+			gpio-controller;
+			#gpio-cells = <3>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
 	};
 };