Backport of "gstv4l2tuner: return NULL if no norm set" into 1.20
Backport of !1625 (merged) "gstv4l2tuner: return NULL if no norm set".
Commits:
- 748c5f35 gstv4l2tuner: return NULL if no norm set
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Backport of !1625 (merged) "gstv4l2tuner: return NULL if no norm set".
Commits: