Android: Fix camera preview orientation

Before API level 24 the display orientation (the preview) was always
set to 0. On newer versions of Android the clockwise rotation is set
to be either 0 or 180, depending on the hardware. Since we don't
want Android to apply transformation on our surface, we'll just
enforce that the display orientation is always set to 0.

Task-number: QTBUG-56536
Change-Id: Ie1aacda97540d5c97e6cbd8edb2afc53e7041e1e
Reviewed-by: Andy Shaw <andy.shaw@qt.io>