CVE-2024-50282 drm/amdgpu: add missing size check in amdgpu_debugfs_gprwave_read()

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add missing size check in amdgpudebugfsgprwaveread Avoid a possible buffer overflow if size is larger than 4K. cherry picked from commit f5d873f5825b40d886d03bd2aede91d4cf002434...