4.9-stable patches

4.9-stable patches

added patches:
	objtool-allow-alternatives-to-be-ignored.patch
	objtool-detect-jumps-to-retpoline-thunks.patch
	objtool-modules-discard-objtool-annotation-sections-for-modules.patch
	selftests-x86-add-test_vsyscall.patch
	sysfs-cpu-fix-typos-in-vulnerability-documentation.patch
	x86-alternatives-add-missing-n-at-end-of-alternative-inline-asm.patch
	x86-alternatives-fix-optimize_nops-checking.patch
	x86-asm-use-register-variable-to-get-stack-pointer-value.patch
	x86-cpu-amd-make-lfence-a-serializing-instruction.patch
	x86-cpu-amd-use-lfence_rdtsc-in-preference-to-mfence_rdtsc.patch
	x86-cpu-factor-out-application-of-forced-cpu-caps.patch
	x86-cpu-implement-cpu-vulnerabilites-sysfs-functions.patch
	x86-cpu-merge-bugs.c-and-bugs_64.c.patch
	x86-cpufeatures-add-x86_bug_cpu_insecure.patch
	x86-cpufeatures-add-x86_bug_spectre_v.patch
	x86-cpufeatures-make-cpu-bugs-sticky.patch
	x86-mm-32-move-setup_clear_cpu_cap-x86_feature_pcid-earlier.patch
	x86-pti-rename-bug_cpu_insecure-to-bug_cpu_meltdown.patch
	x86-retpoline-add-initial-retpoline-support.patch
	x86-retpoline-checksum32-convert-assembler-indirect-jumps.patch
	x86-retpoline-crypto-convert-crypto-assembler-indirect-jumps.patch
	x86-retpoline-entry-convert-entry-assembler-indirect-jumps.patch
	x86-retpoline-fill-return-stack-buffer-on-vmexit.patch
	x86-retpoline-ftrace-convert-ftrace-assembler-indirect-jumps.patch
	x86-retpoline-hyperv-convert-assembler-indirect-jumps.patch
	x86-retpoline-irq32-convert-assembler-indirect-jumps.patch
	x86-retpoline-remove-compile-time-warning.patch
	x86-retpoline-xen-convert-xen-hypercall-indirect-jumps.patch
	x86-spectre-add-boot-time-option-to-select-spectre-v2-mitigation.patch