You guya should submit that quirk to the ZHA Device Handlers repository on GitHub or at least open an issue there with a reference to that link if want it included in ZHA so it can be supported by default in the future, read explainations here:
Some new products will need a custom ZHA Device Handler (also known as a quirk) so first submit a device feature request issue to the ZHA Device Handlers repository on GitHub if there is not already an ongoing issue discussion there already: