[STM32F[0-1]] Clean pwm and analog channel definition

[svastm]

On STM32F0 and STM32F1, the channel selection of PWM, ADC and DAC are hard-coded (harder than in PeripheralPin.c). To be more consistent with other families, this PR move the channel selection to PeripheralPin.c by using the macro STM_PIN_DATA_EX.

[screamerbg]

@svastm this would need wider testing across Nucleo F0-F1. Happy to provide some test results?

[svastm]

I can't provide a test report because I did it with an oscilloscope. What I tested was the periphs, I did not try all the pins of all the targets.

With NUCLEO_F072RB and NUCLEO_F103RB, I was able to use PWM and AnalogIn (and AnalogOut on F0) correctly:

• PWM on at least two different channels:
  • Init/generate.
• ADC on at least two different channels:
  • Switch to 100% when plug to 3V3.
  • Switch to 0% when plug to GND.
• DAC on the both channels:
  • Generate a sinus.

We need a check of all the pins ? or/and some no-reg tests over the boards ?

[bcostm]

I don't think it is necessary to recheck all the pins again. I had a look in all modifications and LGTM.
Thanks.

[0xc0170]

LGTM