4.19-stable patches

4.19-stable patches

added patches:
	cpu-speculation-add-prototype-for-cpu_show_srbds.patch
	documentation-add-documentation-for-processor-mmio-stale-data.patch
	kvm-x86-speculation-disable-fill-buffer-clear-within-guests.patch
	x86-bugs-group-mds-taa-processor-mmio-stale-data-mitigations.patch
	x86-cpu-add-another-alder-lake-cpu-to-the-intel-family.patch
	x86-cpu-add-elkhart-lake-to-intel-family.patch
	x86-cpu-add-jasper-lake-to-intel-family.patch
	x86-cpu-add-lakefield-alder-lake-and-rocket-lake-models-to-the-to-intel-cpu-family.patch
	x86-speculation-add-a-common-function-for-md_clear-mitigation-update.patch
	x86-speculation-mmio-add-mitigation-for-processor-mmio-stale-data.patch
	x86-speculation-mmio-add-sysfs-reporting-for-processor-mmio-stale-data.patch
	x86-speculation-mmio-enable-cpu-fill-buffer-clearing-on-idle.patch
	x86-speculation-mmio-enumerate-processor-mmio-stale-data-bug.patch
	x86-speculation-mmio-print-smt-warning.patch
	x86-speculation-mmio-reuse-srbds-mitigation-for-sbds.patch
	x86-speculation-srbds-update-srbds-mitigation-selection.patch