Control presentation policy with FLAG_PRESENTATION on internal displays

Currently with the Presentation API for CD project, presentations
are allowed on all displays by default because this is almost
equivalent to allowing presentations on internal + external displays.

However, to mitigate risks to inadvertently allow presentations
on displays where we shouldn't on some platforms such as AAOS,
this change sets FLAG_PRESENTATION explicitly to internal
dipslays and has PresentationController check this.

This change also adds a config overlay for this to disable this
behavior on some platforms.

Flag: com.android.window.flags.enable_presentation_for_connected_displays
Bug: 429927513
Test: PresentationTest
Change-Id: Iee7376927b145e9f1589d1e25eef3f6dc45baef7