unix/modtermios: tcsetattr: If 0 passed for "when" param, treat as TCSANOW.
unix/modtermios: tcsetattr: If 0 passed for "when" param, treat as TCSANOW.

As we dn't export constants for TCSANOW, etc., zero makes a good "don't
care" param, and now it will work also under Android Bionic and any other
libc.

HenrikSolver/micropython,matthewelse/micropython,Peetz0r/micropython-esp32,adafruit/micropython,PappaPeppar/micropython,ChuckM/micropython,Peetz0r/micropython-esp32,alex-march/micropython,TDAbboud/micropython,cwyark/micropython,lowRISC/micropython,ernesto-g/micropython,ganshun666/micropython,matthewelse/micropython,TDAbboud/micropython,SHA2017-badge/micropython-esp32,Peetz0r/micropython-esp32,henriknelson/micropython,ruffy91/micropython,adafruit/micropython,praemdonck/micropython,kerneltask/micropython,mhoffma/micropython,alex-robbins/micropython,mianos/micropython,chrisdearman/micropython,jmarcelino/pycom-micropython,redbear/micropython,adafruit/circuitpython,xhat/micropython,jmarcelino/pycom-micropython,deshipu/micropython,Timmenem/micropython,tralamazza/micropython,ganshun666/micropython,EcmaXp/micropython,tuc-osg/micropython,pfalcon/micropython,AriZuu/micropython,EcmaXp/micropython,kerneltask/micropython,lowRISC/micropython,neilh10/micropython,MrSurly/micropython,pramasoul/micropython,galenhz/micropython,supergis/micropython,misterdanb/micropython,blmorris/micropython,danicampora/micropython,xhat/micropython,trezor/micropython,galenhz/micropython,mhoffma/micropython,cwyark/micropython,MrSurly/micropython-esp32,blazewicz/micropython,toolmacher/micropython,ernesto-g/micropython,adamkh/micropython,toolmacher/micropython,henriknelson/micropython,ruffy91/micropython,noahwilliamsson/micropython,TDAbboud/micropython,tobbad/micropython,danicampora/micropython,drrk/micropython,tralamazza/micropython,alex-march/micropython,tuc-osg/micropython,neilh10/micropython,alex-robbins/micropython,pfalcon/micropython,jmarcelino/pycom-micropython,TDAbboud/micropython,vitiral/micropython,pramasoul/micropython,micropython/micropython-esp32,swegener/micropython,pozetroninc/micropython,noahwilliamsson/micropython,mhoffma/micropython,deshipu/micropython,cloudformdesign/micropython,danicampora/micropython,selste/micropython,dinau/micropython,pozetroninc/micropython,trezor/micropython,vitiral/micropython,ruffy91/micropython,vitiral/micropython,pramasoul/micropython,misterdanb/micropython,hosaka/micropython,swegener/micropython,emfcamp/micropython,SHA2017-badge/micropython-esp32,mpalomer/micropython,hiway/micropython,chrisdearman/micropython,puuu/micropython,turbinenreiter/micropython,AriZuu/micropython,praemdonck/micropython,supergis/micropython,ChuckM/micropython,emfcamp/micropython,dmazzella/micropython,pramasoul/micropython,oopy/micropython,MrSurly/micropython,lowRISC/micropython,trezor/micropython,PappaPeppar/micropython,bvernoux/micropython,selste/micropython,ChuckM/micropython,omtinez/micropython,hosaka/micropython,hiway/micropython,drrk/micropython,EcmaXp/micropython,tobbad/micropython,SHA2017-badge/micropython-esp32,PappaPeppar/micropython,lowRISC/micropython,dxxb/micropython,torwag/micropython,torwag/micropython,praemdonck/micropython,redbear/micropython,dhylands/micropython,matthewelse/micropython,noahwilliamsson/micropython,dinau/micropython,puuu/micropython,blmorris/micropython,drrk/micropython,Peetz0r/micropython-esp32,mianos/micropython,ryannathans/micropython,omtinez/micropython,misterdanb/micropython,turbinenreiter/micropython,martinribelotta/micropython,blmorris/micropython,ChuckM/micropython,tobbad/micropython,kerneltask/micropython,redbear/micropython,swegener/micropython,blmorris/micropython,praemdonck/micropython,oopy/micropython,xhat/micropython,micropython/micropython-esp32,ruffy91/micropython,MrSurly/micropython-esp32,pfalcon/micropython,chrisdearman/micropython,dinau/micropython,alex-robbins/micropython,micropython/micropython-esp32,xhat/micropython,pramasoul/micropython,MrSurly/micropython-esp32,danicampora/micropython,noahwilliamsson/micropython,ryannathans/micropython,micropython/micropython-esp32,swegener/micropython,bvernoux/micropython,matthewelse/micropython,hosaka/micropython,PappaPeppar/micropython,alex-march/micropython,deshipu/micropython,micropython/micropython-esp32,infinnovation/micropython,dxxb/micropython,SHA2017-badge/micropython-esp32,ChuckM/micropython,adamkh/micropython,drrk/micropython,adamkh/micropython,oopy/micropython,Peetz0r/micropython-esp32,neilh10/micropython,neilh10/micropython,cloudformdesign/micropython,henriknelson/micropython,lowRISC/micropython,henriknelson/micropython,torwag/micropython,supergis/micropython,cwyark/micropython,drrk/micropython,infinnovation/micropython,bvernoux/micropython,kerneltask/micropython,oopy/micropython,dxxb/micropython,AriZuu/micropython,SHA2017-badge/micropython-esp32,martinribelotta/micropython,ganshun666/micropython,adafruit/micropython,redbear/micropython,Timmenem/micropython,tuc-osg/micropython,MrSurly/micropython-esp32,AriZuu/micropython,mpalomer/micropython,galenhz/micropython,mianos/micropython,noahwilliamsson/micropython,alex-robbins/micropython,blazewicz/micropython,cloudformdesign/micropython,ryannathans/micropython,hiway/micropython,bvernoux/micropython,toolmacher/micropython,neilh10/micropython,dhylands/micropython,turbinenreiter/micropython,selste/micropython,tuc-osg/micropython,supergis/micropython,mianos/micropython,puuu/micropython,ganshun666/micropython,tobbad/micropython,AriZuu/micropython,swegener/micropython,infinnovation/micropython,ruffy91/micropython,ryannathans/micropython,Timmenem/micropython,pozetroninc/micropython,vitiral/micropython,xhat/micropython,mpalomer/micropython,torwag/micropython,HenrikSolver/micropython,cwyark/micropython,MrSurly/micropython,HenrikSolver/micropython,martinribelotta/micropython,blmorris/micropython,tralamazza/micropython,dinau/micropython,tobbad/micropython,selste/micropython,ernesto-g/micropython,mpalomer/micropython,hosaka/micropython,ganshun666/micropython,dmazzella/micropython,torwag/micropython,pfalcon/micropython,matthewelse/micropython,EcmaXp/micropython,henriknelson/micropython,jmarcelino/pycom-micropython,mpalomer/micropython,emfcamp/micropython,dhylands/micropython,adafruit/circuitpython,omtinez/micropython,deshipu/micropython,tuc-osg/micropython,dmazzella/micropython,misterdanb/micropython,alex-march/micropython,HenrikSolver/micropython,toolmacher/micropython,dxxb/micropython,oopy/micropython,toolmacher/micropython,infinnovation/micropython,kerneltask/micropython,adafruit/circuitpython,praemdonck/micropython,adafruit/circuitpython,chrisdearman/micropython,dmazzella/micropython,TDAbboud/micropython,pozetroninc/micropython,PappaPeppar/micropython,trezor/micropython,martinribelotta/micropython,martinribelotta/micropython,tralamazza/micropython,supergis/micropython,pozetroninc/micropython,misterdanb/micropython,danicampora/micropython,hiway/micropython,alex-march/micropython,vitiral/micropython,galenhz/micropython,deshipu/micropython,dxxb/micropython,adafruit/micropython,matthewelse/micropython,adamkh/micropython,cloudformdesign/micropython,turbinenreiter/micropython,blazewicz/micropython,cwyark/micropython,ernesto-g/micropython,EcmaXp/micropython,puuu/micropython,blazewicz/micropython,ernesto-g/micropython,HenrikSolver/micropython,MrSurly/micropython-esp32,redbear/micropython,blazewicz/micropython,mhoffma/micropython,bvernoux/micropython,mhoffma/micropython,hiway/micropython,trezor/micropython,emfcamp/micropython,omtinez/micropython,jmarcelino/pycom-micropython,MrSurly/micropython,galenhz/micropython,adafruit/circuitpython,pfalcon/micropython,MrSurly/micropython,chrisdearman/micropython,adafruit/circuitpython,turbinenreiter/micropython,ryannathans/micropython,mianos/micropython,adamkh/micropython,dhylands/micropython,alex-robbins/micropython,hosaka/micropython,selste/micropython,cloudformdesign/micropython,infinnovation/micropython,Timmenem/micropython,puuu/micropython,Timmenem/micropython,dinau/micropython,emfcamp/micropython,omtinez/micropython,adafruit/micropython,dhylands/micropython