Fix for: test per-uid timeouts.

- more splits and try to read all of them,
- optimize split reading,
- re-add disabled digester test for ease of debugging.

Bug: 224017187
Fixes: 224017187
Test: atest PackageManagerShellCommandIncrementalTest
Change-Id: I6bf95611abd7056990694304aad140ed48ca82d7
2 files changed