Backport of "decklink: Update enum value bounds check in gst_decklink_get_mode()" into 1.18
requested to merge tpm/gst-plugins-bad:backport-mr-1737-into-1.18-decklink-widescreen-modes into 1.18
Backport of !1737 (merged) "decklink: Update enum value bounds check in gst_decklink_get_mode()".
Commits:
- c6aca271 decklink: Update enum value bounds check in gst_decklink_get_mode()