Find{BLAS,LAPACK}: Update SCSL library
Changes:
- Fixed typo in name of the library
- Added multithreaded version of the library
- Introduced LAPACK supported by SCSL
All changes were done according to http://www.polarhome.com/service/man/?qf=INTRO_LAPACK&af=0&sf=0&of=IRIX&tf=2