Why I did it
Vaibhav Dahiya notified me that invalid fan speed policy was expecting an error raised in sonic-mgmt testing, but it was not raised.
This change will fix test_platform_info.py::test_thermal_control_load_invalid_value_json
How I did it
Add in the suggested code chunk to Arista platform submodule to raise ValueError when an invalid fan speed is set in thermal policy.
How to verify it
Vaibhav Dahiya has verified it through sonic-mgmt testing.
Co-authored-by: Zhi Yuan (Carl) Zhao <zyzhao@arista.com>
