src/xenxs: Refactor code parsing CPU features
src/xenxs: Refactor code parsing CPU features

introduce function
  xenParseXMCPUFeatures(virConfPtr conf,.........);
which parses CPU features instead

Signed-off-by: Kiarie Kahurani <c9add1accb912784264f310f617467d4c47149ea@gmail.com>

agx/libvirt,olafhering/libvirt,nertpinx/libvirt,eskultety/libvirt,jardasgit/libvirt,crobinso/libvirt,fabianfreyer/libvirt,agx/libvirt,taget/libvirt,zippy2/libvirt,olafhering/libvirt,eskultety/libvirt,datto/libvirt,jardasgit/libvirt,jfehlig/libvirt,elmarco/libvirt,datto/libvirt,taget/libvirt,shugaoye/libvirt,jardasgit/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,shugaoye/libvirt,crobinso/libvirt,zippy2/libvirt,agx/libvirt,datto/libvirt,eskultety/libvirt,taget/libvirt,olafhering/libvirt,shugaoye/libvirt,elmarco/libvirt,rlaager/libvirt,libvirt/libvirt,crobinso/libvirt,taget/libvirt,olafhering/libvirt,rlaager/libvirt,rlaager/libvirt,rlaager/libvirt,jfehlig/libvirt,zippy2/libvirt,jardasgit/libvirt,nertpinx/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,elmarco/libvirt,VenkatDatta/libvirt,libvirt/libvirt,agx/libvirt,elmarco/libvirt,andreabolognani/libvirt,taget/libvirt,agx/libvirt,nertpinx/libvirt,elmarco/libvirt,fabianfreyer/libvirt,eskultety/libvirt,andreabolognani/libvirt,nertpinx/libvirt,jfehlig/libvirt,andreabolognani/libvirt,nertpinx/libvirt,crobinso/libvirt,datto/libvirt,andreabolognani/libvirt,shugaoye/libvirt,jardasgit/libvirt,shugaoye/libvirt,jfehlig/libvirt,rlaager/libvirt,libvirt/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,zippy2/libvirt,fabianfreyer/libvirt,datto/libvirt,VenkatDatta/libvirt,eskultety/libvirt,libvirt/libvirt