CVE-2024-56697 drm/amdgpu: Fix the memory allocation issue in amdgpu_discovery_get_nps_info()

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix the memory allocation issue in amdgpudiscoverygetnpsinfo Fix two issues with memory allocation in amdgpudiscoverygetnpsinfo for memranges: - Add a check for allocation failure to avoid dereferencing a null pointer...