cpu/fe310: provide gpio feature at cpu level
cpu/fe310: provide gpio feature at cpu level

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