drm/i915/gem: Really move i915_gem_context.link under ref protection
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 v6.0 by commit d119888b09bd567e07c6b93a07f175df88857e02, it was introduced in version v5.12 by commit f8246cf4d9a9025d26c609bb2195e7c0a9ce5c40. For more details please see the references link.