Reset state after split launch animation finishes

Previously we were clearing SplitSelectStateController
state too soon for fake landscape case where
as soon as the tasks launch the device does a rotation
animation since the new split tasks are in landscape.
Move restting state after animation finishes.

Fixes: 201980666

Change-Id: I23efd59fad444c47ae6c2048888a8570f22610fd
2 files changed