powerpc/64s: Fix crashes when toggling entry flush barrier
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 v5.12.5 by commit 5bc00fdda1e934c557351a9c751a205293e68cbf, it was introduced in version v5.10 by commit f79643787e0a0762d2409b7b8334e83f22d85695. For more details please see the references link.