drm fixes for 5.16-rc8

nouveau:
- fencing regression fix

i915:
- Fix possible uninitialized variable
- Fix composite fence seqno icrement on each fence creation

amdgpu:
- Fencing fix
- XGMI fix
- VCN regression fix
- IP discovery regression fixes
- Fix runpm documentation
- Suspend/resume fixes
- Yellow Carp display fixes
- MCLK power management fix
- dma-buf fix
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