stm32/machine_adc: Make setting of ADC1_COMMON->CCR clearer on STM32WB.
stm32/machine_adc: Make setting of ADC1_COMMON->CCR clearer on STM32WB.

henriknelson/micropython,kerneltask/micropython,pramasoul/micropython,bvernoux/micropython,MrSurly/micropython,henriknelson/micropython,henriknelson/micropython,kerneltask/micropython,adafruit/circuitpython,MrSurly/micropython,bvernoux/micropython,adafruit/circuitpython,bvernoux/micropython,MrSurly/micropython,henriknelson/micropython,pramasoul/micropython,adafruit/circuitpython,kerneltask/micropython,adafruit/circuitpython,adafruit/circuitpython,selste/micropython,MrSurly/micropython,pramasoul/micropython,selste/micropython,bvernoux/micropython,pramasoul/micropython,bvernoux/micropython,pramasoul/micropython,MrSurly/micropython,selste/micropython,kerneltask/micropython,adafruit/circuitpython,kerneltask/micropython,selste/micropython,selste/micropython,henriknelson/micropython