[Tissot / Xiaomi Mi A1] Fingerprint scanner is not recognized

Summary

/e/ version: e-0.7-o-2019092624980-dev-tissot

Steps to reproduce

Go to Settings --> Security & Privacy and you will see that there is no option to add fingerprint unlock method. Also apps don't recognize fingeprint scanner.

What is the current behavior?

Fingerprint scanner is not recognized.

What is the expected correct behavior?

Fingerprint scanner should be recognized.

Relevant logs and/or screenshots

No relevant logs currently. Ask me if you need something.

Possible fixes

Probably needs some Xiaomi vendor files (not sure). Referencing:

https://gitlab.e.foundation/e/devices/xiaomi/proprietary_vendor_xiaomi/issues/9