Fixing issue with CMake >= 2.8.10.2 FindPackageHandleStandardArgs. - Prior to CMake 2.8.10.2 FindPackageHandleStandardArgs was safe if passed <LIBRARY>_FOUND as a variable to validate, this is no longer true for newer CMake releases. - Also adding missing SUITESPARSEQR_FOUND requirement for SUITESPARSE_FOUND. Change-Id: I0fdde56585fc736bdfbf433901ad17ee9f1cc216