add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
..
..
@@ -527,7 +527,7 @@
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 		interrupt-parent = <&gpio1>;
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 		interrupts = <31 0>;
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-		pendown-gpio = <&gpio1 31 0>;
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+		pendown-gpio = <&gpio1 31 GPIO_ACTIVE_LOW>;
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 		ti,x-min = /bits/ 16 <0x0>;