Add wtf logging if only allowed by token

Add a wtf log in case BAL is only allowed by token. This also logs
additional information provided by the callback, like if the token
matched the expected token. This information should reflect how often
NMS tokens are required to start activities.

Test: atest BackgroundActivityLaunchTest
Flag: com.android.window.flags.bal_additional_logging
Bug: 403398176
Change-Id: I2af715e02f57cb8bcf201809eaa9e0c144793584