boards: seeeduino_arch-pro: use hex file.
boards: seeeduino_arch-pro: use hex file.

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