This extension allows pairing two buffer objects so they can be
exported using a single dma-buf handle. When imported, a single
buffer object is created with a total size of the two buffer
objects.
Related-To: LOCI-3355
Sync to
https://github.com/intel-gpu/drm-uapi-helper/releases/tag/v2.0-rc15
Signed-off-by: Jaime Arteaga <jaime.a.arteaga.molina@intel.com>