drm fixes for 6.16-rc4

core:
- fix drm_writeback_connector_cleanup function signature
- use correct HDMI audio bridge in drm_connector_hdmi_audio_init

bridge:
- SN65DSI86: fix HPD

amdgpu:
- Cleaner shader support for additional GFX9 GPUs
- MES firmware compatibility fixes
- Discovery error reporting fixes
- SDMA6/7 userq fixes
- Backlight fix
- EDID sanity check

i915:
- Fix for SNPS PHY HDMI for 1080p@120Hz
- Correct DP AUX DPCD probe address
- Followup build fix for GCOV and AutoFDO enabled config

xe:
- Missing error check
- Fix xe_hwmon_power_max_write
- Move flushes
- Explicitly exit CT safe mode on unwind
- Process deferred GGTT node removals on device unwind