MIPS: Ingenic: Refresh USB nodes to match driver changes.

Refresh USB nodes in the jz4780.dtsi, x1000.dtsi, and x1830.dtsi files.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Link: https://lore.kernel.org/r/1649964337-114337-4-git-send-email-zhouyanjie@wanyeetech.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

arch/mips/boot/dts/ingenic/jz4780.dtsi

@@ -577,7 +577,7 @@ bch: bch@134d0000 {
 	};
 
 	otg: usb@13500000 {
-		compatible = "ingenic,jz4780-otg", "snps,dwc2";
+		compatible = "ingenic,jz4780-otg";
 		reg = <0x13500000 0x40000>;
 
 		interrupt-parent = <&intc>;

arch/mips/boot/dts/ingenic/x1000.dtsi

@@ -366,7 +366,7 @@ mdio: mdio {
 	};
 
 	otg: usb@13500000 {
-		compatible = "ingenic,x1000-otg", "snps,dwc2";
+		compatible = "ingenic,x1000-otg";
 		reg = <0x13500000 0x40000>;
 
 		interrupt-parent = <&intc>;

arch/mips/boot/dts/ingenic/x1830.dtsi

@@ -355,7 +355,7 @@ mdio: mdio {
 	};
 
 	otg: usb@13500000 {
-		compatible = "ingenic,x1830-otg", "snps,dwc2";
+		compatible = "ingenic,x1830-otg";
 		reg = <0x13500000 0x40000>;
 
 		interrupt-parent = <&intc>;