CVE-2026-89820 drm/amd/display: fix dc_lock leak on GPU reset error paths

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix dclock leak on GPU reset error paths On GPU reset, dmsuspend takes dclock and leaves it for dmresume to drop. If amdgpudmcommitzerostreams or dmdmubhwinit fails, the function returns with the lock still held...