add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/xtensa/include/asm/asm-uaccess.h
..
..
@@ -32,8 +32,6 @@
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 #define KERNEL_DS	0
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 #define USER_DS		1
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-#define get_ds		(KERNEL_DS)
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-
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 /*
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  * get_fs reads current->thread.current_ds into a register.
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  * On Entry: