add nk_io at24_eeprom driver

hc

2023-02-14 796a7ef0befd21e25c2b9e42f53a6d7a4421941d

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# locally computed using sha256sum
sha256    142127b7953fbd829b1057fb64a78d3340c2b771484230a7347e94530a0d9039    memtest86+-5.01.tar.gz