arm64: dts: imx8qxp-mek: Remove unexisting Ethernet PHY

There is only on Ethernet port and one Ethernet PHY on imx8qxp-mek.

Remove the unexisting ethphy1 port.

This fixes a run-time warning:

mdio_bus 5b040000.ethernet-1: MDIO device at address 1 is missing.

Fixes: fdea904e ("arm64: dts: imx: add imx8qxp mek support")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8qxp-mek.dts

@@ -52,11 +52,6 @@ ethphy0: ethernet-phy@0 {
 			compatible = "ethernet-phy-ieee802.3-c22";
 			reg = <0>;
 		};
-
-		ethphy1: ethernet-phy@1 {
-			compatible = "ethernet-phy-ieee802.3-c22";
-			reg = <1>;
-		};
 	};
 };