mount: ignore autofs entries in mount listing

mount: ignore autofs entries in mount listing

Since we can't enable use of ignoring autofs mounts that have the
"ignore" option present by default (systemd could get confused) it's
necessary to enable it for individual applications.

The mount utility is one applcation we need it for so enable it.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: John Westerdale <jwesterd@redhat.com>
Cc: Frank Hertz <fhirtz@redhat.com>
Cc: Frank Sorenson <fsorenso@redhat.com>