Use keyguard showing instead of dismissible for showing wallpaper presentation

Wallpaper presentation should also be shown in connected display when swipe to dismiss screen is shown in the primary display.

Flag: com.android.window.flags.enable_connected_displays_wallpaper_presentations
Test: DisplayWallpaperPresentationInteractorTest
Fix: 440567351
Change-Id: I67570817d5e0f131e63b1e244b57755d438fa6bc