Similar to r30244, make the libmpi_usempif08 Fortran library also

LIBADD libmpi.la

cmr=v1.7.4:reviewer=brbarret:subject=Add libmpi to libmpi_usempif08_LIBADD

This commit was SVN r30245.

The following SVN revision numbers were found above:
  r30244 --> open-mpi/ompi@7015343951

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

@@ -707,7 +707,8 @@ module_sentinel_file = \
 
 libmpi_usempif08_la_LIBADD = \
         $(module_sentinel_file) \
-        $(OMPI_MPIEXT_USEMPIF08_LIBS)
+        $(OMPI_MPIEXT_USEMPIF08_LIBS) \
+        $(top_builddir)/ompi/libmpi.la
 libmpi_usempif08_la_LDFLAGS = -version-info $(libmpi_usempif08_so_version)
 
 #