add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/arch/arc/include/uapi/asm/page.h
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@@ -33,5 +33,4 @@
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 #define PAGE_MASK	(~(PAGE_SIZE-1))
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-
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 #endif /* _UAPI__ASM_ARC_PAGE_H */