ARM: dts: Add i2c0 pinctrl information for 98dx3236

Add pinctrl information for the 98dx3236 (and variants). There is only
one choice for i2c0 MPP14 and MPP15.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm/boot/dts/armada-xp-98dx3236.dtsi

@@ -264,6 +264,8 @@ refclk: oscillator {
 &i2c0 {
 	compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
 	reg = <0x11000 0x100>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
 };
 
 &mpic {
@@ -319,6 +321,11 @@ spi0_pins: spi0-pins {
 			       "mpp2", "mpp3";
 		marvell,function = "spi0";
 	};
+
+	i2c0_pins: i2c-pins-0 {
+		marvell,pins = "mpp14", "mpp15";
+		marvell,function = "i2c0";
+	};
 };
 
 &spi0 {