add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# SPDX-License-Identifier: GPL-2.0-only
   zreladdr-y    += 0x80008000
params_phys-y    := 0x80000100
initrd_phys-y    := 0x82000000