There are files that include both vma.h and proc_parse.h and
since dump_filemap_t is declared in both some gccs generate
a warning.

Warning: proc_parse.h:131: note: previous declaration of ‘dump_filemap_t’ was here
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>