Fixing Launcher crash if activity restarts while resixing widget

When activity restarts, the widgetView gets onDetachFromWindow first
which inturn removes the AppWidgetResizeFrame from drawLayer while
the dispatchAttachToWindow was still in progress in DragLayer

Bug: 238416508
Test: Verified no crash after the change
Change-Id: I6359840c9fb3ae2719056845818620af19d3c94d