add at24 driver

hc

2023-11-06 15ade055295d13f95d49e3d99b09f3bbfb4a43e7

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# md5 from https://pypi.python.org/pypi/spidev/json, sha256 locally computed
md5    f601676f1bb48b9aa3b3897f95216365  spidev-3.2.tar.gz
sha256    09d2b5122f0dd79910713a11f9a0020f71537224bf829916def4fffc0ea59456  spidev-3.2.tar.gz