intel-media-driver performance fix for gen8/9/10

Hi all, I'd like to bring to attention an issue in the 'intel-media-driver' package that now has an upstream fix. TLDR: This affects the 'iHD' VAAPI driver for Gen 8 - Gen 10 iGPU video transcoding. Bug: Performance below 60 frames per second. Fix: Restores full performance of iGPU. More than triples performance. Upstream bug: https://github.com/intel/media-driver/issues/925 Upstream fix: https://github.com/intel/media-driver/pull/1589 Thanks, Michael