add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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M54451EVB BOARD
#M:    -
S:    Maintained
F:    board/freescale/m54451evb/
F:    include/configs/M54451EVB.h
F:    configs/M54451EVB_defconfig
F:    configs/M54451EVB_stmicro_defconfig