tests/emb6: replace board blacklist
tests/emb6: replace board blacklist

Replaces the board blacklist by a matching
feature blacklist or arch_msp430.

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