[Cin] Mesa3d va-api encoding MR

[Andrew Randrianasulu]

So, few hours ago this merge request for mesa3d surfaced (I think it
affects radeonsi AMD cards)

---
why: to enhance va video encoding quality
how: use va encoding quality_level interface, and provide
default value and encoding quality adjustment options,
so that users can finetune encoding quality and performance
from va quality interface.

 There are 3 settings added:
 -- preset modes: speed, balance, quality
    they are using different encoding strategies
 -- vbaq modes: vbaq mode is using variance based strategy
    to improve the subjective image quality
 -- pre-encoding modes:
    Using scaled down input image for pre-encoding to have
    better rate-control reaction and consume more memory
    in the same time. Only preencoding-4x mode is enabled.
---

https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17994
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