zephyr/Makefile: Revamp "test" target after ports were moved to ports/.
zephyr/Makefile: Revamp "test" target after ports were moved to ports/.

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