drm fixes for 5.9-rc5

rapidio/xlnx kconfig fix.

core:
- Documentation fix.

i915:
- audio regression fix

virtio:
- Fix double free in virtio.
- Fix virtio unblank.
- Remove output->enabled from virtio, as it should use crtc_state.

sun4i:
- Add missing put_device in sun4i, and other fixes.
- Handle sun4i alpha on lowest plane correctly.

tv200:
- Fix tve200 enable/disable.

ingenic
- Small ingenic fixes.
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