Why I did it
Platform cases test_tx_disable, test_tx_disable_channel, test_power_override failed in dx010.
How I did it
Add i2c access algorithm for CPLD i2c adapters.
How to verify it
Verify it with platform_tests/api/test_sfp.py::TestSfpApi test cases.
* [platform/cel] Implement FAN APIs based on the new platform API
* [platform/cel] Move platform api to under device platform
* [platform/cel] Remove rule to build platform api python wheel