stmhal: Add back GPIO_BSRRL and GPIO_BSRRH constants to stm module.
stmhal: Add back GPIO_BSRRL and GPIO_BSRRH constants to stm module.

These were inadvertently removed with a recent upgrade to CMSIS, where
those registers were no longer defined in the CMSIS headers, and hence
no longer extracted.

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