Inhibit lost link recovery in P2P mode.

The closing and reopening of the transport when in slave only mode is not
necessary if the port is using the peer delay mechanism. In that case, the
port will discover the network error by transmitting a peer delay request.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Delio Brignoli <dbrignoli@audioscience.com>