Add test API for AuthenticationPolicyManager CTS tests

Adding test API for AuthenticationPolicyManager to skip security
features that interfere with tests (disabling USB/ADB)

Flag: android.security.secure_lock_device
Flag: android.security.secure_lockdown
Fixes: 376456619
Bug: 401645997
Test: atest CtsSecurityTestCases:android.security.cts.authenticationpolicy.AuthenticationPolicyManagerTest
Change-Id: I30fd5a2ea2ace957f85ad2d9000ca2c9c9ae857d