boards/nucleo-l073: add ADC configuration
boards/nucleo-l073: add ADC configuration

ADC configuration added for nucleo-l073 board

Signed-off-by: Aurelien Fillau <b933d430db3ead458ac564385846d9d83f501d8e@gmail.com>

BytesGalore/RIOT,basilfx/RIOT,OlegHahm/RIOT,miri64/RIOT,jasonatran/RIOT,avmelnikoff/RIOT,neiljay/RIOT,adrianghc/RIOT,neiljay/RIOT,lazytech-org/RIOT,basilfx/RIOT,smlng/RIOT,LudwigOrtmann/RIOT,miri64/RIOT,BytesGalore/RIOT,roberthartung/RIOT,OTAkeys/RIOT,kaspar030/RIOT,adrianghc/RIOT,mtausig/RIOT,roberthartung/RIOT,yogo1212/RIOT,immesys/RiSyn,ant9000/RIOT,ant9000/RIOT,biboc/RIOT,avmelnikoff/RIOT,aeneby/RIOT,ant9000/RIOT,aeneby/RIOT,smlng/RIOT,lazytech-org/RIOT,A-Paul/RIOT,A-Paul/RIOT,cladmi/RIOT,cladmi/RIOT,gebart/RIOT,LudwigKnuepfer/RIOT,ks156/RIOT,LudwigKnuepfer/RIOT,josephnoir/RIOT,immesys/RiSyn,toonst/RIOT,josephnoir/RIOT,OTAkeys/RIOT,authmillenon/RIOT,immesys/RiSyn,LudwigOrtmann/RIOT,toonst/RIOT,rfuentess/RIOT,A-Paul/RIOT,kaspar030/RIOT,roberthartung/RIOT,biboc/RIOT,adrianghc/RIOT,mtausig/RIOT,biboc/RIOT,ant9000/RIOT,neiljay/RIOT,jasonatran/RIOT,mfrey/RIOT,miri64/RIOT,ks156/RIOT,ks156/RIOT,aeneby/RIOT,authmillenon/RIOT,roberthartung/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,lazytech-org/RIOT,Josar/RIOT,kbumsik/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,aeneby/RIOT,miri64/RIOT,toonst/RIOT,BytesGalore/RIOT,Josar/RIOT,LudwigKnuepfer/RIOT,immesys/RiSyn,neiljay/RIOT,authmillenon/RIOT,LudwigKnuepfer/RIOT,OTAkeys/RIOT,avmelnikoff/RIOT,yogo1212/RIOT,OlegHahm/RIOT,immesys/RiSyn,mtausig/RIOT,A-Paul/RIOT,immesys/RiSyn,yogo1212/RIOT,smlng/RIOT,josephnoir/RIOT,kbumsik/RIOT,adrianghc/RIOT,gebart/RIOT,Josar/RIOT,A-Paul/RIOT,LudwigOrtmann/RIOT,avmelnikoff/RIOT,biboc/RIOT,OlegHahm/RIOT,yogo1212/RIOT,Josar/RIOT,josephnoir/RIOT,toonst/RIOT,OTAkeys/RIOT,smlng/RIOT,x3ro/RIOT,LudwigOrtmann/RIOT,miri64/RIOT,rfuentess/RIOT,LudwigOrtmann/RIOT,biboc/RIOT,kYc0o/RIOT,kbumsik/RIOT,ks156/RIOT,adrianghc/RIOT,kaspar030/RIOT,authmillenon/RIOT,BytesGalore/RIOT,kYc0o/RIOT,lazytech-org/RIOT,gebart/RIOT,mtausig/RIOT,mfrey/RIOT,x3ro/RIOT,cladmi/RIOT,gebart/RIOT,OlegHahm/RIOT,LudwigKnuepfer/RIOT,authmillenon/RIOT,OTAkeys/RIOT,jasonatran/RIOT,mfrey/RIOT,roberthartung/RIOT,jasonatran/RIOT,kbumsik/RIOT,mfrey/RIOT,aeneby/RIOT,mtausig/RIOT,jasonatran/RIOT,basilfx/RIOT,x3ro/RIOT,RIOT-OS/RIOT,cladmi/RIOT,kYc0o/RIOT,RIOT-OS/RIOT,basilfx/RIOT,rfuentess/RIOT,mfrey/RIOT,kYc0o/RIOT,x3ro/RIOT,kaspar030/RIOT,toonst/RIOT,josephnoir/RIOT,kbumsik/RIOT,x3ro/RIOT,neiljay/RIOT,ant9000/RIOT,cladmi/RIOT,avmelnikoff/RIOT,smlng/RIOT,LudwigOrtmann/RIOT,rfuentess/RIOT,RIOT-OS/RIOT,kaspar030/RIOT,yogo1212/RIOT,gebart/RIOT,Josar/RIOT,kYc0o/RIOT,rfuentess/RIOT,yogo1212/RIOT,basilfx/RIOT,BytesGalore/RIOT,lazytech-org/RIOT,ks156/RIOT