Merge branch kvm-arm64/selftest/debug into kvmarm-master/next

Merge branch kvm-arm64/selftest/debug into kvmarm-master/next

Guest self-hosted debug tests from Ricardo Koller

* kvm-arm64/selftest/debug:
  KVM: selftests: Add aarch64/debug-exceptions test
  KVM: selftests: Add exception handling support for aarch64
  KVM: selftests: Move GUEST_ASSERT_EQ to utils header
  KVM: selftests: Introduce UCALL_UNHANDLED for unhandled vector reporting
  KVM: selftests: Complete x86_64/sync_regs_test ucall
  KVM: selftests: Rename vm_handle_exception