Then try if this one will do the trick, if not you might try to download the beta version of volumio.
vc4-kms-dsi-waveshare-panel-v2.zip (1.1 KB)
cd ~
wget https://community.volumio.com/uploads/short-url/rOCwRS6008AMhAZXZ7Tz6k3UfAX.zip
miniunzip rOCwRS6008AMhAZXZ7Tz6k3UfAX.zip
rm rOCwRS6008AMhAZXZ7Tz6k3UfAX.zip
sudo cp vc4-kms-dsi-waveshare-panel-v2.dtbo /boot/overlays/