arm64: tegra: Add power monitors on P2771

The P2771 development board comes with two power monitors that can be
used to determine power consumption in different parts of the board.
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts

@@ -8,6 +8,18 @@ / {
 	model = "NVIDIA Tegra186 P2771-0000 Development Board";
 	compatible = "nvidia,p2771-0000", "nvidia,tegra186";
 
+	i2c@3160000 {
+		power-monitor@42 {
+			compatible = "ti,ina3221";
+			reg = <0x42>;
+		};
+
+		power-monitor@43 {
+			compatible = "ti,ina3221";
+			reg = <0x43>;
+		};
+	};
+
 	/* SDMMC1 (SD/MMC) */
 	sdhci@3400000 {
 		status = "okay";