arm64: dts: imx8m: disable smart eee for FEC PHY

As commit 390b4cad ("net: phy: at803x: add support for configuring SmartEEE")
described, disable PHY smart eee by default.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi

@@ -116,6 +116,7 @@ ethphy0: ethernet-phy@0 {
 			reg = <0>;
 			reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <10000>;
+			qca,disable-smarteee;
 		};
 	};
 };

arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi

@@ -99,6 +99,7 @@ ethphy0: ethernet-phy@0 {
 			reg = <0>;
 			reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <10000>;
+			qca,disable-smarteee;
 		};
 	};
 };

arch/arm64/boot/dts/freescale/imx8mq-evk.dts

@@ -169,6 +169,7 @@ ethphy0: ethernet-phy@0 {
 			reg = <0>;
 			reset-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <10000>;
+			qca,disable-smarteee;
 		};
 	};
 };