message: [dhcp6] enable DHCP6 server and client for reference device
diff: @@ -73,6 +73,8 @@ otbr_install()
  if [[ ${REFERENCE_DEVICE} == "1" ]]; then
  otbr_options+=(
  "-DOT_REFERENCE_DEVICE=ON"
  + "-DOT_DHCP6_CLIENT=ON"
  + "-DOT_DHCP6_SERVER=ON"
  )
  fi
  if with BACKBONE_ROUTER; then
  