4.9-stable patches

4.9-stable patches

added patches:
	documentation-add-section-about-cpu-vulnerabilities-for-spectre.patch
	documentation-add-swapgs-description-to-the-spectre-v1-documentation.patch
	documentation-hw-vuln-update-spectre-doc.patch
	documentation-refer-to-config-randomize_base-for-kernel-address-space-randomization.patch
	x86-bugs-unconditionally-allow-spectre_v2-retpoline-amd.patch
	x86-retpoline-make-config_retpoline-depend-on-compiler-support.patch
	x86-retpoline-remove-minimal-retpoline-support.patch
	x86-speculation-add-eibrs-retpoline-options.patch
	x86-speculation-add-retpoline_amd-support-to-the-inline-asm-call_nospec-variant.patch
	x86-speculation-include-unprivileged-ebpf-status-in-spectre-v2-mitigation-reporting.patch
	x86-speculation-merge-one-test-in-spectre_v2_user_select_mitigation.patch
	x86-speculation-rename-retpoline_amd-to-retpoline_lfence.patch
	x86-speculation-update-link-to-amd-speculation-whitepaper.patch
	x86-speculation-use-generic-retpoline-by-default-on-amd.patch
	x86-speculation-warn-about-eibrs-lfence-unprivileged-ebpf-smt.patch
	x86-speculation-warn-about-spectre-v2-lfence-mitigation.patch