add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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DS109 BOARD
M:    Walter Schweizer <swwa@users.sourceforge.net>
S:    Maintained
F:    board/Synology/ds109
F:    configs/ds109_defconfig
F:    include/configs/ds109.h