Allow FSI when device provisioned but user setup incomplete

We don't allow notifications to peek during user setup, so we need to
let FSIs through for things like incoming calls.

Implement this in both the old and new visual interruption decision code
since the flag for the new code isn't completely rolled out yet.

Bug: 326356165
Test: atest VisualInterruptionDecisionProviderImplTest
Test: atest NotificationInterruptStateProviderWrapperTest
Flag: NA
Change-Id: I50399bea3bafb6bc65e58006a44cb092bc6a86ee