add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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config BR2_PACKAGE_LUAJSON
    bool "luajson"
    # run-time dependency
    select BR2_PACKAGE_LPEG
    help
      LuaJSON is a customizable JSON decoder/encoder
      using LPEG for parsing.
 
      http://github.com/harningt/luajson