[40] kms/impl-device/atomic: Add virtio_gpu to deny list
virtio_gpu is used in virtual machine environments, meaning they need accurate cursor hotspots, which currently needs non-atomic mode setting.
Related: https://bugzilla.redhat.com/show_bug.cgi?id=2009304 Part-of: !2040 (merged)
(cherry picked from commit 9179d4a4)