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 v5.15.48 by commit d74f4eb1ddf076a55ff0682a89e66af5c1974321. For more details please see the references link.