sys/auto_init: update isl29020 with new API
sys/auto_init: update isl29020 with new API

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