Also:
1. Separate static configuration into init phase to improve
performance
2. Add a init code config layer to avoid duplicated configuration
3. Add a HW_CALIBRATION_V1 caps
The ``adc_digi_config_t`` struct is modified on esp32c3: configuration
of clock divider factors are not provided anymore. The SARADC sampling
frequency is provided instead. In this way, we can handle the frequency
limit better.
