Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux into drm...

Fixes for 4.21. A bit more than usual due to the holidays.  Highlights:
- add new vegaM pci id
- sr-iov fixes
- DC fix for fast cursor updates
- DC freesync fix
- DC display clock fix for polaris
- DC fixes for dongles
- DC fix for some eDP panels
- misc vega20 fixes
- kfd return code fix for dma_buf support
- VCN fixes for PCO
- nbio hw bug workaround

Signed-off-by: Dave Airlie <[email protected]>
From: Alex Deucher <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]