kernel security, bug fix, and enhancement update

4.18.0-147.OL8 - Oracle Linux certificates Alexey Petrenko - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 4.18.0-147 - x86 perf/x86/intel: Fix spurious NMI on fixed counter Michael Petlan...