Migrate OsuLogin package name to overlay

The package name was previously hardcoded.
Change it to an overlay to allow it to be
customized.

Bug: 143967693
Test: atest PasspointProvisionerTest
Test: connect to OSU network and verify OsuLogin
app opens

Change-Id: I5e1a068edf5d0eb8a5783eb43dee9903d7bf564f
4 files changed
tree: e918c81a109bf95607be53cd3b2a9aa46d1f40b5
  1. apex/
  2. service/
  3. PREUPLOAD.cfg