arm64: KVM: Use per-CPU vector when BP hardening is enabled

arm64: KVM: Use per-CPU vector when BP hardening is enabled

BugLink: http://bugs.launchpad.net/bugs/1751064
Commit 6840bdd73d07 upstream.

Now that we have per-CPU vectors, let's plug then in the KVM/arm64 code.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Conflicts:
	arch/arm/include/asm/kvm_mmu.h
	arch/arm64/include/asm/kvm_mmu.h
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>