arm64: dts: ls208xa: add power monitor chip node

Ina220 chip was used on ls208xardb platform to monitor power
comsumption. So add ina220 chip node in dts to enable power
consumption monitor feature.
Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/fsl-ls208xa-rdb.dtsi

@@ -95,6 +95,18 @@ rtc@68 {
 			};
 		};
 
+		i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x02>;
+
+			ina220@40 {
+				compatible = "ti,ina220";
+				reg = <0x40>;
+				shunt-resistor = <500>;
+			};
+		};
+
 		i2c@3 {
 			#address-cells = <1>;
 			#size-cells = <0>;