ARM: sun5i: olinuxino: Enable the i2c controllers

The A13-Olinuxino makes use of the 3 i2c controllers found on the Allwinner
A13. Enable them in the device tree.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Tomasz Figa <tomasz.figa@gmail.com>

arch/arm/boot/dts/sun5i-a13-olinuxino.dts

@@ -37,6 +37,24 @@ uart1: serial@01c28400 {
 			pinctrl-0 = <&uart1_pins_b>;
 			status = "okay";
 		};
+
+		i2c0: i2c@01c2ac00 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pins_a>;
+			status = "okay";
+		};
+
+		i2c1: i2c@01c2b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c1_pins_a>;
+			status = "okay";
+		};
+
+		i2c2: i2c@01c2b400 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c2_pins_a>;
+			status = "okay";
+		};
 	};
 
 	leds {