Change contexts of /persist to persist_file

We have used persist_file in previous Android versions and changing them
in /persist is a bit problematic as restorecon doesn't properly apply
the correct permissions in many cases.

Issue: FP2A10-150
Change-Id: If3489c29fdb84494245f1d5a813fc5d7bf95bb11
1 file changed
tree: 19e2f72bbf4fdb3d2d20e3f6cf926fa790dec39f
  1. private/
  2. public/
  3. vendor/
  4. Android.mk