afs: Fix dynamic root getattr
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 v5.10.127 by commit 7b564e3254b7db5fbfbf11a824627a6c31b932b4, it was introduced in version v5.10.118 by commit 61a4cc41e5c1b77d05a12798f8032050aa75f3c8. For more details please see the references link.