qsv: Update SDK version to v2022.2.4 and add plugin doc
See release note https://github.com/oneapi-src/oneVPL/releases/tag/v2022.2.0
Edited by Seungha Yang
Due to an influx of spam, we have had to impose restrictions on new accounts. Please see this wiki page for instructions on how to get full permissions. Sorry for the inconvenience.
See release note https://github.com/oneapi-src/oneVPL/releases/tag/v2022.2.0