apexd: Add an abortActiveSession binder call

Just a stub, to unblock work on StagingManager.
Will implement it in follow up CLs.

- apexd will have an invariant that at any moment there will be no more
  than one non-final session;
- aborting session pre-reboot will result in just deleting that session;
- aborting session post-reboot will initiate a self rollback in apexd;

Bug: 123622800
Bug: 124036308
Test: compiles
Change-Id: I00e9495ae8c8c5d31042c41c531f4f2dd29244fa
2 files changed
tree: 31073bae18e9a86a7d28582c021f8cb024e5df05
  1. apexd/
  2. apexer/
  3. proto/
  4. tests/
  5. OWNERS
  6. PREUPLOAD.cfg
  7. TEST_MAPPING