Backport of "qtdemux: use unsigned int types to store result of QT_UINT32" into 1.20
requested to merge tpm/gstreamer:backport-mr-3344-into-1.20-justin.chadwell-qtdemux-uint-types into 1.20
Backport of !3344 (merged) "qtdemux: use unsigned int types to store result of QT_UINT32".
Commits:
- fd96fc23 qtdemux: use unsigned int types to store result of QT_UINT32