drm fixes for 5.11-rc1

dma-buf:
- fix build on mips

komeda:
- fix commit tail operation order
- NULL pointer fix
- out of bounds access fix

ttm:
- remove an unused function

amdgpu:
- Vangogh SMU fixes
- Arcturus gfx9 fixes
- Misc display fixes
- Sienna Cichlid SMU update
- Fix S3 display memory leak
- Fix regression caused by DP sub-connector support

amdkfd:
- Properly require pcie atomics for gfx10
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