Fingerprints: allow devices to restrict 3rd party access

In order to provide an upgrade path for devices with an older
fingerprint implementation and to retain that functionality we must
limit access to 3rd party apps due to the old implementation, while
still allowing integration with the System.

Ref: SAMBAR-1260

Change-Id: I55f8fc744c5b3c3088caf00f74419c3691ba7595
Signed-off-by: Roman Birg <roman@cyngn.com>