drm/amdgpu/cs: make commands with 0 chunks illegal behaviour.
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.198 by commit c12984cdb077b9042d2dc20ca18cb16a87bcc774. For more details please see the references link.