cpu/stm32: remove hardcoded cpuid addr for f0
cpu/stm32: remove hardcoded cpuid addr for f0

jasonatran/RIOT,OTAkeys/RIOT,basilfx/RIOT,authmillenon/RIOT,authmillenon/RIOT,ant9000/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,basilfx/RIOT,kYc0o/RIOT,basilfx/RIOT,OlegHahm/RIOT,jasonatran/RIOT,kaspar030/RIOT,basilfx/RIOT,ant9000/RIOT,kaspar030/RIOT,ant9000/RIOT,kaspar030/RIOT,authmillenon/RIOT,miri64/RIOT,OlegHahm/RIOT,jasonatran/RIOT,kYc0o/RIOT,kaspar030/RIOT,ant9000/RIOT,OlegHahm/RIOT,authmillenon/RIOT,ant9000/RIOT,jasonatran/RIOT,kYc0o/RIOT,OTAkeys/RIOT,OlegHahm/RIOT,kYc0o/RIOT,miri64/RIOT,kaspar030/RIOT,kYc0o/RIOT,authmillenon/RIOT,authmillenon/RIOT,OlegHahm/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,OTAkeys/RIOT,miri64/RIOT,miri64/RIOT,OTAkeys/RIOT,miri64/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,basilfx/RIOT