Add STM32 ADC driver #10896
Description
ADC driver is missing for STM32 devices.
#8624 was started based on former ADC API but was closed when new ADC API got merged.
This PR was a good start and could be reused with following changes:
-use latest zephyr ADC API
-be STM32 generic ready (initial version was focusing on F4). This does not mean it should be tested and validated on all STM32 series, but at least remove F4 specifics, like f4 suffixes and so on. It could be later on tested and validated on other series by interested parties.