* join/begin mrp protocol for attributes of mvrp and msrp within stream_activate.
* Creation of the attribute done on stream creation during es_buidler
built:
* es_builder: create stream with state variables and counters
* acmp: do not use the stream list, go through the descriptor to find
the index
* stream: do not store redundant information such as the index and
descriptor
* internal: removing the stream server and function associated to it
module-avb: internal, stream: removing server_find_stream
to attach ressource to the descriptors instead of having them splitted.
It is the case for the avb-streams which in a seperated list. Instead they
should be encapsulated within the descriptor itself, as one cannot leave
without the other.
