6.12-stable patches

6.12-stable patches

added patches:
	arm64-bpf-add-bhb-mitigation-to-the-epilogue-for-cbpf-programs.patch
	arm64-bpf-only-mitigate-cbpf-programs-loaded-by-unprivileged-users.patch
	arm64-insn-add-support-for-encoding-dsb.patch
	arm64-proton-pack-add-new-cpus-k-values-for-branch-mitigation.patch
	arm64-proton-pack-expose-whether-the-branchy-loop-k-value.patch
	arm64-proton-pack-expose-whether-the-platform-is-mitigated-by-firmware.patch
	documentation-x86-bugs-its-add-its-documentation.patch
	selftest-x86-bugs-add-selftests-for-its.patch
	x86-bhi-do-not-set-bhi_dis_s-in-32-bit-mode.patch
	x86-bpf-add-ibhf-call-at-end-of-classic-bpf.patch
	x86-bpf-call-branch-history-clearing-sequence-on-exit.patch
	x86-ibt-keep-ibt-disabled-during-alternative-patching.patch
	x86-its-add-support-for-its-safe-indirect-thunk.patch
	x86-its-add-support-for-its-safe-return-thunk.patch
	x86-its-add-support-for-rsb-stuffing-mitigation.patch
	x86-its-add-vmexit-option-to-skip-mitigation-on-some-cpus.patch
	x86-its-align-rets-in-bhb-clear-sequence-to-avoid-thunking.patch
	x86-its-enable-indirect-target-selection-mitigation.patch
	x86-its-enumerate-indirect-target-selection-its-bug.patch
	x86-its-use-dynamic-thunks-for-indirect-branches.patch
	x86-speculation-add-a-conditional-cs-prefix-to-call_nospec.patch
	x86-speculation-remove-the-extra-ifdef-around-call_nospec.patch
	x86-speculation-simplify-and-make-call_nospec-consistent.patch