Backport of "d3d11convert: Passthrough allocation query on same caps" into 1.22
requested to merge tpm/gstreamer:mr-5255-backport-into-1.22-d3d11conv-passthrough-alloc-query into 1.22
Backport of !5255 (merged) "d3d11convert: Passthrough allocation query on same caps".
Commits:
- 1e381dc1 d3d11convert: Passthrough allocation query on same caps