NIAP: Implement BluetoothKeystore feature

Bug: 148758680
Test: atest BluetoothKeystoreServiceTest
Change-Id: I19ec7b4ece5183c3d401844a089a287a37d324c5
Merged-In: I19ec7b4ece5183c3d401844a089a287a37d324c5
3 files changed