Simplify parameters of ensureActivityConfiguration

Move setRelaunchingAfterRequestedOrientationChanged to caller
because it only cares about if the activity is requested to be
relaunching when calling setRequestedOrientation.

Bug: 163976519
Test: SizeCompatTests#testFixedAspectRatioOrientationChangeOrientation
Change-Id: I43a0c5f08c18a90c33c609f24ce47c9563594721