mt7620 openwrt編譯，修改dts檔案

對于 MT7620a 。必須修改dts檔案，否則編譯出來的固件将無法啟動：

把 [email protected] 和 [email protected] 修改成下面的内容：

ethernet@ {
                status = "okay";
                mtd-mac-address = <&factory >;

                pinctrl-names = "default";
                pinctrl- = <&ephy_pins>;

                ralink,port-map = "llllw";

        };

        gsw@ {
                ralink,port4 = "ephy_pins";
        };