math/sundials: Multiple changes

• add -DCMAKE_C_STANDARD=99 to CMAKE_ARGS; this fixes the LAPACK option
• remove -DSUNDIALS_INDEX_TYPE:STRING=int64_t, since this is automatically determined based on SUNDIALS_INDEX_SIZE which defaults to 64 bits. SUNDIALS_INDEX_TYPE has been deprecated with release 3.2.0
• make LAPACK default
• remove LAPACK_BROKEN
• remove {BLAS,LAPACK}_CMAKE_ON, since CMake warns during configuring that FREEBSD_GCC_DIR is not used
• reenable OPENMP option
• replace BLAS_ENABLE with ENABLE_BLAS; this silences a warning
• switch the MPI option to CMAKE_BOOL
• add HYPRE_BROKEN, since configure errors out when trying to build with hypre support

PR: 260771
Original patch submitted by: Philipp Ost <bsd@philippost.de>