add nk_io at24_eeprom driver

hc

2023-02-14 796a7ef0befd21e25c2b9e42f53a6d7a4421941d

 kernel/Makefile
..
..
@@ -463,6 +463,7 @@
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 		   -fno-strict-aliasing -fno-common -fshort-wchar \
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 		   -Werror-implicit-function-declaration \
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 		   -Werror=return-type -Wno-format-security \
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+		   -w
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 		   -std=gnu89
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 KBUILD_CPPFLAGS := -D__KERNEL__
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 KBUILD_AFLAGS_KERNEL :=