Add lockdownEnabled parameter to always-on VPN API

Allows callers to opt-out of blockading network traffic during boot and
on VPN app failure.

Bug: 26694104
Change-Id: Ibfbd43ad09a25f2e38053fcd6306df3711f8bde2
3 files changed
tree: 4ca34ff3edbf9e87af11774760e9f50d8a1e5000
  1. core/
  2. services/
  3. tests/