Fix trying to create Peer for participant without streams
Fix trying to create Peer for participant without streams

When the MCU is used, if a participant does not send audio nor video
streams the self Peer to connect to the MCU is not created. Due to this
requesting an offer from that participant never succeeds, and thus a
Peer to get the streams will never be created.

Signed-off-by: Daniel Calviño Sánchez <bd7629e975cc0e00ea7cda4ab6a120f2ee42ac1b@gmail.com>

nextcloud/spreed,nextcloud/spreed,nextcloud/spreed