MPI: update included tarball to 4.0.2

From the README file:

Note that starting with Open MPI v4.0.0, prototypes for several
legacy MPI-1 symbols that were deleted in the MPI-3.0 specification
(which was published in 2012) are no longer available by default in
mpi.h.  Specifically, several MPI-1 symbols were deprecated in the
1996 publishing of the MPI-2.0 specification.  These deprecated
symbols were eventually removed from the MPI-3.0 specification in
2012.

The symbols that now no longer appear by default in Open MPI's mpi.h
are:

- MPI_Address (replaced by MPI_Get_address)
- MPI_Errhandler_create (replaced by MPI_Comm_create_errhandler)
- MPI_Errhandler_get (replaced by MPI_Comm_get_errhandler)
- MPI_Errhandler_set (replaced by MPI_Comm_set_errhandler)
- MPI_Type_extent (replaced by MPI_Type_get_extent)
- MPI_Type_hindexed (replaced by MPI_Type_create_hindexed)
- MPI_Type_hvector (replaced by MPI_Type_create_hvector)
- MPI_Type_lb (replaced by MPI_Type_get_extent)
- MPI_Type_struct (replaced by MPI_Type_create_struct)
- MPI_Type_ub (replaced by MPI_Type_get_extent)
- MPI_LB (replaced by MPI_Type_create_resized)
- MPI_UB (replaced by MPI_Type_create_resized)
- MPI_COMBINER_HINDEXED_INTEGER
- MPI_COMBINER_HVECTOR_INTEGER
- MPI_COMBINER_STRUCT_INTEGER
- MPI_Handler_function (replaced by MPI_Comm_errhandler_function)

src/build.pl

@@ -23,7 +23,7 @@
 
 # Set locations
 my $THORN = "MPI";
-my $NAME = "openmpi-1.10.7";
+my $NAME = "openmpi-4.0.2";
 my $INSTALL_DIR = undef;
 my $BUILD_DIR = undef;
 my $SRCDIR = $0;