add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arm64/include/uapi/asm/setup.h
..
..
@@ -22,6 +22,6 @@
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 #include <linux/types.h>
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-#define COMMAND_LINE_SIZE	4096
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+#define COMMAND_LINE_SIZE	2048
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 #endif