modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/arch/arm/boot/dts/imx6qdl-gw560x.dtsi
..
..
@@ -634,7 +634,6 @@
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 &uart1 {
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 	pinctrl-names = "default";
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 	pinctrl-0 = <&pinctrl_uart1>;
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-	uart-has-rtscts;
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 	rts-gpios = <&gpio7 1 GPIO_ACTIVE_HIGH>;
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 	status = "okay";
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 };