util: Use virBitmapIsBitSet in freebsd impl of virProcessSetAffinity
util: Use virBitmapIsBitSet in freebsd impl of virProcessSetAffinity

Use the helper that does not return errors to fix spuriously looking
dead return of -1.

datto/libvirt,taget/libvirt,nertpinx/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jardasgit/libvirt,datto/libvirt,datto/libvirt,andreabolognani/libvirt,nertpinx/libvirt,VenkatDatta/libvirt,eskultety/libvirt,VenkatDatta/libvirt,crobinso/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,andreabolognani/libvirt,eskultety/libvirt,olafhering/libvirt,nertpinx/libvirt,olafhering/libvirt,fabianfreyer/libvirt,libvirt/libvirt,eskultety/libvirt,libvirt/libvirt,jardasgit/libvirt,fabianfreyer/libvirt,jfehlig/libvirt,crobinso/libvirt,jfehlig/libvirt,taget/libvirt,andreabolognani/libvirt,crobinso/libvirt,jardasgit/libvirt,zippy2/libvirt,libvirt/libvirt,olafhering/libvirt,datto/libvirt,taget/libvirt,libvirt/libvirt,olafhering/libvirt,eskultety/libvirt,jfehlig/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,zippy2/libvirt,taget/libvirt,eskultety/libvirt,datto/libvirt,nertpinx/libvirt,jardasgit/libvirt,zippy2/libvirt,zippy2/libvirt,VenkatDatta/libvirt,crobinso/libvirt,nertpinx/libvirt,taget/libvirt,jfehlig/libvirt,fabianfreyer/libvirt,VenkatDatta/libvirt