CLSA-2024-1719568080 Fix CVE(s): CVE-2021-33631, CVE-2021-47545, CVE-2024-2201, CVE-2024-26642

CVE-url: https://ubuntu.com/security/CVE-2024-2201 - x86/cpufeatures: Add CPUIDLNX5 to track recently added Linux-defined word - x86/bugs: Change commas to semicolons in 'spectrev2' sysfs file - x86/bhi: Add support for clearing branch history at syscall entry - x86/bhi: Define SPECCTRLBHIDISS -...