Add 'exclude parent' option to debug.

We could add this to list in the future if it seems useful.

This allows someone to call debug on all registered hal instances
without dumping subclasses multiple times.

Bug: 72123369
Test: w/ bugreport using this and manual
Change-Id: Ib201194a9f81ae1aded7105d123ac6399c847494
5 files changed