add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

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# Locally computed:
sha256  e9a99cc81ef0a93f3484e5093efd14d93cc967221fcd22c151f0bea32eb91da7  sispmctl-3.1.tar.gz