add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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STMARK2 BOARD
M:    Angelo Dureghello <angelo@sysam.it>
S:    Maintained
F:    board/sysam/stmark2/
F:    include/configs/stmark2.h
F:    configs/stmark2_defconfig