Configure TM_steady_dieletric test to use superlu_dist instead of mumps.
Configure TM_steady_dieletric test to use superlu_dist instead of mumps.

jhaase1/zapdos,lindsayad/zapdos,shannon-lab/zapdos,lindsayad/zapdos,shannon-lab/zapdos,jhaase1/zapdos,shannon-lab/zapdos,jhaase1/zapdos,lindsayad/zapdos