add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/boot/dts/orion5x-netgear-wnr854t.dts
..
..
@@ -21,6 +21,7 @@
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 	};
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 	memory {
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+		device_type = "memory";
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 		reg = <0x00000000 0x2000000>; /* 32 MB */
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 	};
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