Refactor FingerprintDialogBoundKeysTest to use BiometricDialog

Since we're renaming FingerprintDialog to BiometricDialog the
associated CTS Verifier test also needs updating. This CL updates the
test and references within it to reflect this.

Bug: 74831038
Test: Verifier test works and registers fingerprints correctly.
Change-Id: I3332a4ed705016987a84077399e081756c28da25
2 files changed