AVSTR — Flow naming issue

Summary: The A/V Streams light profile uses strings to name flow endpoints
with respect to their corresponding StreamEndPoint/VDev. In some
systems a flow endpoint in one stream endpoint corresponds to a
differently named flow endpoint in another stream endpoint. When a
stream is set up between these stream endpoints, the request_connection()
and set_format() operations carry enough information
(in terms of directionality and format) to allow the implementation to
map the flow endpoint in the requesting StreamEndPoint/VDev to its
corresponding flow endpoint in the local StreamEndPoint/VDev. This point
and others related to flow naming issues need to be made more explicit in
the text of the specification.