arm64: dts: freescale: imx8mp-toradex-smarc: add embedded controller

Add the embedded controller node to the device tree, this is required
for reset and power-off functionalities.

Reviewed-by: Peng Fan <[email protected]>
Signed-off-by: Emanuele Ghidoli <[email protected]>
Signed-off-by: Francesco Dolcini <[email protected]>
Signed-off-by: Shawn Guo <[email protected]>

Author: eghidoli

arch/arm64/boot/dts/freescale/imx8mp-toradex-smarc.dtsi

@@ -534,6 +534,11 @@
 		};
 	};
 
+	embedded-controller@28 {
+		compatible = "toradex,smarc-imx8mp-ec", "toradex,smarc-ec";
+		reg = <0x28>;
+	};
+
 	rtc_i2c: rtc@32 {
 		compatible = "epson,rx8130";
 		reg = <0x32>;