Backport of "webrtc: fix type of max-retransmits, make it work" into 1.16
requested to merge tpm/gst-plugins-bad:backport-mr-595-into-1.16-fix-gst-data-channel-max-retransmits into 1.16
Backport of !595 (merged) "webrtc: fix type of max-retransmits, make it work".
Commits:
- e2e86658 webrtc: fix type of max-retransmits, make it work