add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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config BR2_PACKAGE_SPI_TOOLS
    bool "spi-tools"
    help
      This package contains some simple command line tools to help
      using Linux spidev devices.
 
      https://github.com/cpb-/spi-tools