[ISSUE] Intel Quick Sync Video broken on Void Linux; no implementations available in the repositories

[Kerberoge <Kerberoge@users.noreply.github.com>]

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New issue by Kerberoge on void-packages repository

https://github.com/void-linux/void-packages/issues/54208

Description:
Intel Quick Sync Video is a marketing name for hardware acceleration features found on Intel integrated GPUs. On Linux, these hardware features can be accessed through two different APIs: [Intel Media SDK](https://github.com/Intel-Media-SDK/MediaSDK) (for older hardware) and the [VPL GPU runtime](https://github.com/intel/vpl-gpu-rt) (for newer hardware) ([source](https://trac.ffmpeg.org/wiki/Hardware/QuickSync#APISupport)). Additionally, there's also [oneVPL](https://github.com/intel/libvpl) (aka libvpl), but this library contains a dispatcher that forwards calls to one of the two libraries. This library cannot provide access to the QSV hardware on its own.

This is also mentioned in the following screenshot, which is taken from the oneVPL Github page:
![Image](https://github.com/user-attachments/assets/e24b088a-21c8-4e33-9949-289480e7785c)

The problem is that Void Linux provides neither the Intel Media SDK, nor the Intel VPL GPU runtime! Due to this, QSV does not currently function on this distribution. An example of this is ffmpeg, which provides the h264_qsv codec. Attempting to encode a video with this codec results in an error, which says that an MFX session could not be created (libmfx is a library provided by the Intel Media SDK). Interestingly, the repositories do contain a package for oneVPL (the dispatcher library).

In order to make the oneVPL package actually useful, both the Intel Media SDK and the GPU runtime should be added to the Void package repository.

Side note: the Intel Media SDK contains a dispatcher as well. Intel recommends to not use this one, but oneVPL instead. So if the Intel Media SDK ever gets added to the repositories, please disable the included dispatcher to prevent redundancy.