Backport of "rtpssrcdemux: Avoid taking streamlock out-of-band" into 1.16
requested to merge tpm/gst-plugins-good:backport-mr-205-into-1.16-rtpssrcdemux-deadlock-fix into 1.16
Backport of !205 (merged) "rtpssrcdemux: Avoid taking streamlock out-of-band".
Commits:
- f7c712d0 rtpssrcdemux: Avoid taking streamlock out-of-band