Only run tests if Trilinos is available.

diff --git a/tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.mpirun=4.output b/tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=4.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.mpirun=4.output
rename to tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=4.output

diff --git a/tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.mpirun=7.output b/tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=7.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.mpirun=7.output
rename to tests/multigrid/transfer_matrix_free_01.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=7.output

diff --git a/tests/multigrid/transfer_matrix_free_02.with_mpi=true.with_p4est=true.mpirun=5.output b/tests/multigrid/transfer_matrix_free_02.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_02.with_mpi=true.with_p4est=true.mpirun=5.output
rename to tests/multigrid/transfer_matrix_free_02.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output

diff --git a/tests/multigrid/transfer_matrix_free_03.with_mpi=true.with_p4est=true.mpirun=5.output b/tests/multigrid/transfer_matrix_free_03.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_03.with_mpi=true.with_p4est=true.mpirun=5.output
rename to tests/multigrid/transfer_matrix_free_03.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output

diff --git a/tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.mpirun=4.output b/tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=4.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.mpirun=4.output
rename to tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=4.output

diff --git a/tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.mpirun=7.output b/tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=7.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.mpirun=7.output
rename to tests/multigrid/transfer_matrix_free_04.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=7.output

diff --git a/tests/multigrid/transfer_matrix_free_05.with_mpi=true.with_p4est=true.mpirun=5.output b/tests/multigrid/transfer_matrix_free_05.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_05.with_mpi=true.with_p4est=true.mpirun=5.output
rename to tests/multigrid/transfer_matrix_free_05.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output

diff --git a/tests/multigrid/transfer_matrix_free_06.with_mpi=true.with_p4est=true.mpirun=5.output b/tests/multigrid/transfer_matrix_free_06.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output
similarity index 100%
rename from tests/multigrid/transfer_matrix_free_06.with_mpi=true.with_p4est=true.mpirun=5.output
rename to tests/multigrid/transfer_matrix_free_06.with_mpi=true.with_p4est=true.with_trilinos=true.mpirun=5.output