fanotify: reorder event on child checking for ease of readability

The check to return false if a parent did not request to receive events
about it's children happens in the middle of a big if statement which is
easier to read if we just do the check later.  So move it.

Signed-off-by: Eric Paris <eparis@redhat.com>

diff --cc fs/notify/fanotify/fanotify.c
Simple merge