Add reboot readiness unit tests

Adds unit tests for the core functionality of
RebootReadinessManagerService. Includes some small
changes to make it easier to instrument
RebootReadinessManagerService.

Test: atest RebootReadinessUnitTests
Bug: 185123398

Change-Id: Ib6a35aa3ac96f85601182f7177e050cb3b3b60e5
8 files changed
tree: a1666764065c9d4fdbb2e4a10721b0c62b454c09
  1. apex/
  2. framework/
  3. service/
  4. tests/
  5. PREUPLOAD.cfg