Nearby CHRE/Mainline integration for Fast Pair.

See go/fp-chre for details. This change has been verified on device with
mock BLE event to support Fast Pair fitler update, device discovery, and
screen on notification to CHRE.

Test: unit tests and on device tests.

Fix: 232286342
Ignore-AOSP-First: nearby_not_in_aosp_yet

Change-Id: Ifd73882c804d3c8a998cd4b9a263fdecbc0f98f7
14 files changed