Fix crash in SystemEventChipAnimationController

There is a crash when trying to force measure a
view that hasn't been attached to a window yet.
This change fixes this by waiting for the view to
be attached if it has not been attached yet.

Bug: 419537552
Test: Added a test that crashes without the fix.
Flag: com.android.systemui.status_bar_root_modernization

Change-Id: Ib6e3ca8ed8758b84d41254864c5060c411723721