drm fixes for 6.8-rc7

buddy:
- two allocation fixes + unit test

fbcon:
- font restore syzkaller fix

ttm:
- kunit test fix

bridge:
- fix aux-hpd leaks
- fix aux-hpd registration
- fix use after free in soc/qcom
- fix boot on soc/qcom

xe:
- A couple of tracepoint updates from Priyanka and Lucas.
- Make sure BINDs are completed before accepting UNBINDs on LR vms.
- Don't arbitrarily restrict max number of batched binds.
- Add uapi for dumpable bos (agreed on IRC).
- Remove unused uapi flags and a leftover comment.
- A couple of fixes related to the execlist backend.

msm:
- DP: Revert a change which was causing a HDP regression

amdgpu:
- Fix potential buffer overflow
- Fix power min cap
- Suspend/resume fix
- SI PM fix
- eDP fix

nouveau:
- fix a misreported VRAM sizing
- fix a regression in suspend/resume due to freeing

tegra:
- host1x reset fix
- only remove existing driver if display is possible
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