Allow secondary user POs on affiliated devices more DPM APIs

- DevicePolicyManager.setKeyguardDisabled
- DevicePolicyManager.setStatusBarDisabled
- DevicePolicyManager.setDeviceOwnerLockScreenInfo
- PackageInstaller install and uninstall apps

Bug: 64383519
Test: Can set keyguard disabled, status bar disabled and lock screen message in
      affliated PO
Test: Can install and uninstall apps in affiliated PO
Test: CTS tracked in b/68925683

Change-Id: I71be25098436ba0b42050478c049850c2b21f6f4