Fix Managed device info CtsVerifier tests.

- Always-on VPN
- Trusted CA certs

They need to use DPM for current user, and check isProfileOwnerApp when
it is headless system user mode.

Bug: 219412450

Test: CtsVerifier tests installed on emulator.

Change-Id: I0ec01f0269f2e27295fbeb21388fea957d6903b0
2 files changed