math/openblas: Use options FCOMMON_OPT=-frecursive MAKE_NB_JOBS=-1 for non-openmp too

Previously I added these options only to the openmp build which isn't a default.
This change is requested by the upstream.
Ref. https://github.com/xianyi/OpenBLAS/issues/1882

Approved by: portmgr (unbreak)