Backport of "webrtc/nice: Make sure to return NULL when validating turn server fails" into 1.20
Backport of !3120 (merged) "webrtc/nice: Make sure to return NULL when validating turn server fails".
Todo:
-
Needs manual intervention, cherry-picking failed!
Commits:
- 94c2cd9d webrtc/nice: Make sure to return NULL when validating turn server fails