add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm/boot/dts/emev2-kzm9d.dts
..
..
@@ -25,7 +25,7 @@
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 	};
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 	chosen {
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-		bootargs = "ignore_loglevel root=/dev/nfs ip=dhcp";
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+		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
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 		stdout-path = "serial1:115200n8";
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 	};
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