Add new method instead of exposing the udfpsRefreshRateCallback

We still expose the callback for other biometrics use cases,
but we abstract away the requestMaxRefreshRate method.

Test: atest AuthControllerTest
Test: manual
Bug: 300348919
Flag: NONE
Change-Id: I05ec7e7d25dc44fdacf368e1c9f0255f89b1c402
3 files changed