CTS: Fixes for android.hardware.cts.CameraTest#testPreviewCallback

- setPreviewDisplay() was omitted during the individual
  preview resolution tests. The camera documentation states
  that a call to either setPreviewDisplay() or setPreviewTexture()
  is necessary in order to start the preview. Apart from
  that setPreviewDisplay() is mandatory on platforms, which utilize
  an overlay for camera preview.

Change-Id: Ifd2ce8d787a8c1d6790701b9d04f13f4158227d0
1 file changed