Avoid entering display freeze mode when using seamless rotation.

If we enter seamless rotation through the
Activity#setRequestedOrientation->updateOrientationFromAppTokens(conf,
ibinder) codepath, it will helpfully try to freeze the display for us
after updating the orientation. Normally only
updateRotationUncheckedLocked does this and so the seamless rotation
logic there would prevent it...however in this path we fail to prevent
it and strange strange things happen.

Bug: 30642017
Change-Id: I12e94905781975f59384d609d12fa54b9fa4fba0