cfi: Fix __cfislowpathdiag RCU usage with cpuidle
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 v5.15.49 by commit 75f3a5fa2ad049c85ab5d5ee1ed9cfaa7e62c5ed, it was introduced in version v5.13 by commit cf68fffb66d60d96209446bfc4a15291dc5a5d41. For more details please see the references link.