drm/amd/display: Set native cursor mode for disabled CRTCs

drm/amd/display: Set native cursor mode for disabled CRTCs

Always set native cursor mode when the CRTC is disabled,
to make sure it doesn't cause atomic commits to fail when
they are trying to disable the CRTC.

Fixes: 41af6215cdbc ("drm/amd/display: Reject cursor plane on DCE when scaled differently than primary")
Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5432
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Tested-by: Viktor Jägersküpper <viktor_jaegerskuepper@freenet.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>