cmake EL_HAVE_VECLIB examples

elemental/Elemental cmake/external_projects/ElMath/ScaLAPACK.cmake :241 

elseif(EL_HAVE_VECLIB AND 
         NOT EL_PREFER_OPENBLAS AND NOT EL_PREFER_BLIS_LAPACK)

elemental/Elemental cmake/external_projects/ElMath/ScaLAPACK.cmake :337 

elseif(EL_HAVE_VECLIB AND
         NOT EL_PREFER_OPENBLAS AND NOT EL_PREFER_BLIS_LAPACK)