add nk_io at24_eeprom driver

hc

2023-02-14 796a7ef0befd21e25c2b9e42f53a6d7a4421941d

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# From http://repository.timesys.com/buildsources/e/elftosb/elftosb-10.12.01/elftosb-10.12.01.tar.gz.md5sum
md5    e8005d606c1e0bb3507c82f6eceb3056    elftosb-10.12.01.tar.gz