petsc: add version 3.11.2 (#11572)
petsc: add version 3.11.2 (#11572)


LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack