drm/backend: add support for cursor hotspots
Enables DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT and sets the cursor hotspots on the cursor plane so virtualized drivers can accelerate mouse movement.
Closes: #3776 (closed)
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Enables DRM_CLIENT_CAP_CURSOR_PLANE_HOTSPOT and sets the cursor hotspots on the cursor plane so virtualized drivers can accelerate mouse movement.
Closes: #3776 (closed)