add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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# Locally computed:
sha256  9704344e732038eecbd007dd996a56293a6b027b5b76f3f036273a3fae1ab27b  gtkperf_0.40.tar.gz