Add CoroutineTracingContext to repeatWhenAttached

Also, add a name to the dispatcher used by
FoldLightRevealOverlayAnimation, and make it a single instance.

Flag: ACONFIG com.android.systemui.coroutine_tracing DISABLED
Bug: 289353932
Test: Capture trace and look for "ViewLifecycleOwner(className)"
Change-Id: I429c41bd7f301f302c2f02c44d014cdc63bd457e