suzerain: #2991 honor upper_w for freestream

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@42469 0bd85f0b-c151-43b9-a1e9-27231104551f
suzerain: fix hiding warning from Intel

git-svn-id: https://svn.ices.utexas.edu/repos/pecos/suzerain/trunk@42470 0bd85f0b-c151-43b9-a1e9-27231104551f