arm: dts: ls2088a: add external MDIO nodes

Add the External MDIO1 device node found in the WRIOP global memory
region. This is needed for management of external PHYs.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/dts/fsl-ls2080a.dtsi b/arch/arm/dts/fsl-ls2080a.dtsi
index 99ed33a..7ff854c 100644
--- a/arch/arm/dts/fsl-ls2080a.dtsi
+++ b/arch/arm/dts/fsl-ls2080a.dtsi
@@ -200,4 +200,19 @@
 			status = "disabled";
 	};
 
+	emdio1: mdio@8B96000 {
+		compatible = "fsl,ls-mdio";
+		reg = <0x0 0x8B96000 0x0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
+
+	emdio2: mdio@8B97000 {
+		compatible = "fsl,ls-mdio";
+		reg = <0x0 0x8B97000 0x0 0x1000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "disabled";
+	};
 };