Add more options for boot profile aggregation

1) force_merge - ensure we merge the data even if it's just a few methods
2) boot_image_merge - ignore non-boot-profiles (in case the app didn't
have the chance to pick app the new format after the flag switch)

Test: profile_assistant_test
Bug: 139884006
Change-Id: Icf7a9a8edac64bac69d16937bc2496bf610f10c8
4 files changed