Fortran: include the type functions (eq/ne) in libmpi_usempif08

This file has to be pre-emptively compiled to generate the module, but
then it also has to be included in libmpi_usempif08.

cmr=v1.8.2:ticket=trac:4736

This commit was SVN r32071.

The following Trac tickets were found above:
  Ticket 4736 --> https://svn.open-mpi.org/trac/ompi/ticket/4736

ompi/mpi/fortran/use-mpi-f08/Makefile.am

@@ -717,6 +717,7 @@ libmpi_usempif08_la_SOURCES = \
         attr-fn-f08-callback-interfaces.h \
         conversion-fn-null-f08-interface.h \
         mpi-f08.F90 \
+        mpi-f08-types.F90 \
         constants.h \
         constants.c