stmhal/dac: Fix DAC (re-)initialisation by resetting DMA.
stmhal/dac: Fix DAC (re-)initialisation by resetting DMA.

Fixes issue #2176.

MrSurly/micropython-esp32,alex-robbins/micropython,puuu/micropython,chrisdearman/micropython,turbinenreiter/micropython,turbinenreiter/micropython,mhoffma/micropython,matthewelse/micropython,selste/micropython,TDAbboud/micropython,AriZuu/micropython,tobbad/micropython,matthewelse/micropython,hiway/micropython,tobbad/micropython,selste/micropython,toolmacher/micropython,pramasoul/micropython,deshipu/micropython,dxxb/micropython,alex-robbins/micropython,kerneltask/micropython,alex-march/micropython,torwag/micropython,tralamazza/micropython,puuu/micropython,oopy/micropython,infinnovation/micropython,selste/micropython,pramasoul/micropython,puuu/micropython,trezor/micropython,SHA2017-badge/micropython-esp32,pozetroninc/micropython,mhoffma/micropython,tralamazza/micropython,lowRISC/micropython,micropython/micropython-esp32,infinnovation/micropython,dxxb/micropython,turbinenreiter/micropython,AriZuu/micropython,mhoffma/micropython,torwag/micropython,adafruit/micropython,TDAbboud/micropython,pfalcon/micropython,dxxb/micropython,alex-march/micropython,cwyark/micropython,hosaka/micropython,adafruit/circuitpython,MrSurly/micropython,oopy/micropython,turbinenreiter/micropython,tuc-osg/micropython,dmazzella/micropython,lowRISC/micropython,HenrikSolver/micropython,hiway/micropython,alex-march/micropython,chrisdearman/micropython,kerneltask/micropython,infinnovation/micropython,micropython/micropython-esp32,jmarcelino/pycom-micropython,ryannathans/micropython,blazewicz/micropython,pfalcon/micropython,tobbad/micropython,mhoffma/micropython,dmazzella/micropython,alex-robbins/micropython,pozetroninc/micropython,matthewelse/micropython,tralamazza/micropython,adafruit/circuitpython,AriZuu/micropython,HenrikSolver/micropython,matthewelse/micropython,ryannathans/micropython,dxxb/micropython,bvernoux/micropython,chrisdearman/micropython,alex-robbins/micropython,TDAbboud/micropython,bvernoux/micropython,henriknelson/micropython,swegener/micropython,torwag/micropython,dmazzella/micropython,hosaka/micropython,lowRISC/micropython,pfalcon/micropython,blazewicz/micropython,Timmenem/micropython,dmazzella/micropython,deshipu/micropython,deshipu/micropython,Peetz0r/micropython-esp32,trezor/micropython,MrSurly/micropython-esp32,ryannathans/micropython,henriknelson/micropython,trezor/micropython,torwag/micropython,puuu/micropython,puuu/micropython,alex-march/micropython,cwyark/micropython,pfalcon/micropython,Peetz0r/micropython-esp32,SHA2017-badge/micropython-esp32,ryannathans/micropython,alex-robbins/micropython,ryannathans/micropython,TDAbboud/micropython,hosaka/micropython,dxxb/micropython,pramasoul/micropython,toolmacher/micropython,henriknelson/micropython,henriknelson/micropython,tralamazza/micropython,pramasoul/micropython,matthewelse/micropython,MrSurly/micropython-esp32,hosaka/micropython,torwag/micropython,kerneltask/micropython,deshipu/micropython,swegener/micropython,MrSurly/micropython,HenrikSolver/micropython,infinnovation/micropython,adafruit/micropython,jmarcelino/pycom-micropython,AriZuu/micropython,Timmenem/micropython,pfalcon/micropython,micropython/micropython-esp32,MrSurly/micropython-esp32,tuc-osg/micropython,Timmenem/micropython,kerneltask/micropython,PappaPeppar/micropython,MrSurly/micropython,selste/micropython,tobbad/micropython,SHA2017-badge/micropython-esp32,cwyark/micropython,adafruit/micropython,cwyark/micropython,adafruit/circuitpython,tuc-osg/micropython,adafruit/circuitpython,swegener/micropython,henriknelson/micropython,adafruit/circuitpython,SHA2017-badge/micropython-esp32,infinnovation/micropython,blazewicz/micropython,adafruit/micropython,Peetz0r/micropython-esp32,pozetroninc/micropython,tobbad/micropython,blazewicz/micropython,lowRISC/micropython,toolmacher/micropython,micropython/micropython-esp32,tuc-osg/micropython,chrisdearman/micropython,alex-march/micropython,toolmacher/micropython,Peetz0r/micropython-esp32,Timmenem/micropython,hiway/micropython,lowRISC/micropython,HenrikSolver/micropython,PappaPeppar/micropython,adafruit/micropython,adafruit/circuitpython,PappaPeppar/micropython,SHA2017-badge/micropython-esp32,trezor/micropython,Peetz0r/micropython-esp32,PappaPeppar/micropython,TDAbboud/micropython,matthewelse/micropython,oopy/micropython,bvernoux/micropython,trezor/micropython,selste/micropython,toolmacher/micropython,swegener/micropython,jmarcelino/pycom-micropython,swegener/micropython,jmarcelino/pycom-micropython,mhoffma/micropython,HenrikSolver/micropython,kerneltask/micropython,hiway/micropython,jmarcelino/pycom-micropython,MrSurly/micropython,MrSurly/micropython,MrSurly/micropython-esp32,pozetroninc/micropython,bvernoux/micropython,Timmenem/micropython,deshipu/micropython,PappaPeppar/micropython,oopy/micropython,bvernoux/micropython,cwyark/micropython,hosaka/micropython,tuc-osg/micropython,turbinenreiter/micropython,micropython/micropython-esp32,AriZuu/micropython,hiway/micropython,blazewicz/micropython,oopy/micropython,pozetroninc/micropython,chrisdearman/micropython,pramasoul/micropython