x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data
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 v5.4.199 by commit 0800f1b45bf6d85e5a168db9ae91fb816f0a8c34. For more details please see the references link.