.gitattributes: Add entries for files that will move to ports/ dir.
.gitattributes: Add entries for files that will move to ports/ dir.

ryannathans/micropython,blazewicz/micropython,pozetroninc/micropython,pramasoul/micropython,trezor/micropython,pramasoul/micropython,pramasoul/micropython,pramasoul/micropython,Timmenem/micropython,adafruit/circuitpython,infinnovation/micropython,kerneltask/micropython,pfalcon/micropython,henriknelson/micropython,ryannathans/micropython,MrSurly/micropython-esp32,pfalcon/micropython,torwag/micropython,torwag/micropython,tralamazza/micropython,dmazzella/micropython,tobbad/micropython,MrSurly/micropython-esp32,swegener/micropython,pramasoul/micropython,dmazzella/micropython,lowRISC/micropython,selste/micropython,ryannathans/micropython,Timmenem/micropython,kerneltask/micropython,henriknelson/micropython,ryannathans/micropython,MrSurly/micropython-esp32,micropython/micropython-esp32,lowRISC/micropython,kerneltask/micropython,pozetroninc/micropython,pozetroninc/micropython,oopy/micropython,micropython/micropython-esp32,MrSurly/micropython,MrSurly/micropython-esp32,micropython/micropython-esp32,AriZuu/micropython,bvernoux/micropython,infinnovation/micropython,infinnovation/micropython,AriZuu/micropython,blazewicz/micropython,kerneltask/micropython,MrSurly/micropython,henriknelson/micropython,ryannathans/micropython,tralamazza/micropython,trezor/micropython,adafruit/circuitpython,adafruit/micropython,adafruit/micropython,trezor/micropython,bvernoux/micropython,selste/micropython,blazewicz/micropython,henriknelson/micropython,tralamazza/micropython,AriZuu/micropython,adafruit/circuitpython,adafruit/circuitpython,tobbad/micropython,Timmenem/micropython,lowRISC/micropython,swegener/micropython,swegener/micropython,oopy/micropython,adafruit/micropython,dmazzella/micropython,tralamazza/micropython,MrSurly/micropython,adafruit/micropython,micropython/micropython-esp32,pozetroninc/micropython,MrSurly/micropython,AriZuu/micropython,pozetroninc/micropython,oopy/micropython,selste/micropython,dmazzella/micropython,pfalcon/micropython,MrSurly/micropython,torwag/micropython,tobbad/micropython,selste/micropython,tobbad/micropython,adafruit/circuitpython,bvernoux/micropython,pfalcon/micropython,trezor/micropython,Timmenem/micropython,torwag/micropython,infinnovation/micropython,bvernoux/micropython,adafruit/circuitpython,tobbad/micropython,blazewicz/micropython,oopy/micropython,bvernoux/micropython,selste/micropython,MrSurly/micropython-esp32,swegener/micropython,lowRISC/micropython,infinnovation/micropython,lowRISC/micropython,kerneltask/micropython,blazewicz/micropython,oopy/micropython,torwag/micropython,swegener/micropython,micropython/micropython-esp32,adafruit/micropython,Timmenem/micropython,AriZuu/micropython,henriknelson/micropython,pfalcon/micropython,trezor/micropython