sys/hashes: fix typos
sys/hashes: fix typos

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