Allow current profiles to disable keyguard

Test: make cts -j20 && cts-tradefed run cts --module CtsDevicePolicyManagerTestCases --test com.android.cts.devicepolicy.MixedManagedProfileOwnerTest#testScreenCaptureDisabled_allowedPrimaryUser
      It is not really a CTS verifies the change directly.
      But I can observe that keyguard is dismissed by a test running in managed profile

Bug: 34049587
Change-Id: I94e3d0cd01b10f31745781f35fdc8e3554994db8