StatusBarWindowControllerImpl - Use Assisted Injection

For connected displays, we will need StatusBarWindowControllerImpl
instances to have display specific instances of Context and
WindowManager.
Since they can't be injected directly, we can use Assisted Injection.

Test: Build and run
Flag: EXEMPT changing from @Inject to @AssistedInject
Bug: 367592591
Change-Id: I535d94452360a0a6e767bd78136142c53b2f8c32