tests/periph_gpio_arduino: disable low-mem boards
tests/periph_gpio_arduino: disable low-mem boards

yogo1212/RIOT,mfrey/RIOT,aeneby/RIOT,A-Paul/RIOT,lazytech-org/RIOT,OTAkeys/RIOT,smlng/RIOT,yogo1212/RIOT,basilfx/RIOT,toonst/RIOT,aeneby/RIOT,mfrey/RIOT,basilfx/RIOT,jasonatran/RIOT,basilfx/RIOT,yogo1212/RIOT,x3ro/RIOT,OTAkeys/RIOT,cladmi/RIOT,smlng/RIOT,kaspar030/RIOT,yogo1212/RIOT,A-Paul/RIOT,cladmi/RIOT,jasonatran/RIOT,basilfx/RIOT,x3ro/RIOT,authmillenon/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,basilfx/RIOT,toonst/RIOT,miri64/RIOT,OlegHahm/RIOT,A-Paul/RIOT,mfrey/RIOT,ant9000/RIOT,miri64/RIOT,OlegHahm/RIOT,josephnoir/RIOT,authmillenon/RIOT,OTAkeys/RIOT,toonst/RIOT,josephnoir/RIOT,miri64/RIOT,yogo1212/RIOT,ant9000/RIOT,kYc0o/RIOT,ant9000/RIOT,x3ro/RIOT,josephnoir/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,ant9000/RIOT,josephnoir/RIOT,cladmi/RIOT,lazytech-org/RIOT,cladmi/RIOT,lazytech-org/RIOT,authmillenon/RIOT,jasonatran/RIOT,miri64/RIOT,authmillenon/RIOT,authmillenon/RIOT,mtausig/RIOT,RIOT-OS/RIOT,mtausig/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,smlng/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,lazytech-org/RIOT,lazytech-org/RIOT,aeneby/RIOT,A-Paul/RIOT,smlng/RIOT,mtausig/RIOT,kYc0o/RIOT,mfrey/RIOT,mfrey/RIOT,rfuentess/RIOT,OlegHahm/RIOT,mtausig/RIOT,x3ro/RIOT,A-Paul/RIOT,josephnoir/RIOT,kaspar030/RIOT,aeneby/RIOT,OlegHahm/RIOT,rfuentess/RIOT,rfuentess/RIOT,kYc0o/RIOT,mtausig/RIOT,miri64/RIOT,aeneby/RIOT,x3ro/RIOT,kYc0o/RIOT,jasonatran/RIOT,authmillenon/RIOT,kYc0o/RIOT,kaspar030/RIOT,OTAkeys/RIOT,jasonatran/RIOT,OTAkeys/RIOT,rfuentess/RIOT,smlng/RIOT,kaspar030/RIOT,cladmi/RIOT,toonst/RIOT,ant9000/RIOT,toonst/RIOT