cpu/kinetis/periph: adc_sample() now returns int32_t
cpu/kinetis/periph: adc_sample() now returns int32_t

authmillenon/RIOT,RIOT-OS/RIOT,basilfx/RIOT,basilfx/RIOT,miri64/RIOT,yogo1212/RIOT,mtausig/RIOT,smlng/RIOT,OlegHahm/RIOT,smlng/RIOT,authmillenon/RIOT,yogo1212/RIOT,basilfx/RIOT,mtausig/RIOT,kaspar030/RIOT,OlegHahm/RIOT,kYc0o/RIOT,OTAkeys/RIOT,mtausig/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,mtausig/RIOT,x3ro/RIOT,yogo1212/RIOT,kYc0o/RIOT,miri64/RIOT,smlng/RIOT,yogo1212/RIOT,jasonatran/RIOT,authmillenon/RIOT,OTAkeys/RIOT,ant9000/RIOT,kaspar030/RIOT,toonst/RIOT,x3ro/RIOT,ant9000/RIOT,yogo1212/RIOT,authmillenon/RIOT,smlng/RIOT,ant9000/RIOT,x3ro/RIOT,jasonatran/RIOT,miri64/RIOT,miri64/RIOT,toonst/RIOT,authmillenon/RIOT,kYc0o/RIOT,kaspar030/RIOT,kYc0o/RIOT,kaspar030/RIOT,OTAkeys/RIOT,ant9000/RIOT,jasonatran/RIOT,mtausig/RIOT,basilfx/RIOT,OlegHahm/RIOT,miri64/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,toonst/RIOT,toonst/RIOT,x3ro/RIOT,kYc0o/RIOT,kaspar030/RIOT,toonst/RIOT,ant9000/RIOT,jasonatran/RIOT,smlng/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,basilfx/RIOT,yogo1212/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,OlegHahm/RIOT,x3ro/RIOT