Make sure that binfmt_flat passes the correct flags into do_mmap().  nommu's
validate_mmap_request() will simple return -EINVAL if we try and pass it a
flags value of zero.
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>