For STM32 platforms that embed an OSPI IP, we're offering
a QSPI fallback support with this commit.
When OSPI is supported in mbed, we can consider adding full
OSPI support
In this commit, the analogin_s structure is moved to commonn_objects.h file
to limit the duplicaion.
The ADC handle is moved from a global variable to a struct member of the
analogin object. This allows multiple ADC instances to work correctly.
Note that State needs to be explicitely set to HAL_ADC_STATE_RESET
because the object is not zero initialized.