Set startinfo package name from persisted data

The field is already being stored in the higher level proto which
is why it missing does not impact accessing persisted records.
Use the already existing field and populate to all records under
it.

Test: run start info tests
Bug: EXEMPT - bugfix
Flag: EXEMPT - bugfix
Change-Id: I37883350de9a7f2333d5689a2558a3a417698949