fortran: ensure that sizeof_f08.h is built before mpi-f08.lo

mpi-f08.F90 includes sizeof_f08.h, so we need to add a Makefile
dependency to ensure that sizeof_f08.h is built first.

Refs trac:4917

This commit was SVN r32789.

The following Trac tickets were found above:
  Ticket 4917 --> https://svn.open-mpi.org/trac/ompi/ticket/4917

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

@@ -43,6 +43,7 @@ mpi-f08.lo: mpi-f08.F90
 mpi-f08.lo: mpi-f-interfaces-bind.h pmpi-f-interfaces-bind.h
 mpi-f08.lo: attr-fn-f08-callback-interfaces.h
 mpi-f08.lo: conversion-fn-null-f08-interface.h
+mpi-f08.lo: sizeof_f08.h
 
 #
 # *sizeof_f08.* are generated based on some results from