CVE-2024-43899 drm/amd/display: Fix null pointer deref in dcn20_resource.c

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null pointer deref in dcn20resource.c Fixes a hang thats triggered when MPV is run on a DCN401 dGPU: mpv --hwdec=vaapi --vo=gpu --hwdec-codecs=all and then enabling fullscreen playback double click on the vid...