Expose the num_procs information to the opal layer as the info is needed in several BTLs

This commit was SVN r32355.

ompi/runtime/ompi_mpi_init.c

@@ -511,6 +511,7 @@ int ompi_mpi_init(int argc, char **argv, int requested, int *provided)
     opal_process_info.proc_session_dir = ompi_process_info.proc_session_dir;
     opal_process_info.num_local_peers  = (int32_t)ompi_process_info.num_local_peers;
     opal_process_info.my_local_rank    = (int32_t)ompi_process_info.my_local_rank;
+    opal_process_info.num_procs        = (uint32_t)ompi_process_info.num_procs;
 #if OPAL_HAVE_HWLOC
     opal_process_info.cpuset           = ompi_process_info.cpuset;
 #endif  /* OPAL_HAVE_HWLOC */