Update fingerprint.h for new API

This adds vendor-specific messaging capabilities to the
HAL driver to avoid the possibility of vendors clobbering
general-purpose methods. The framework translates these
additional messages as an offset into a custom message array.

Additionally, authenticate() now takes a group id to restrict
authentication to a subset of possible fingerprints.

Bug 16487912

Change-Id: I8a92a6c86b4729af03a5576b4a150b1c73fbc9cc
3 files changed