Ping. Any update for this? Or maybe we should use autotest to test this?

MIPI cameras may not have this file. Let's add a test in camera_HAL3 to verify the camera orientation is 0.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/arc-camera/+/f82b665b9419205a2a690ad75d367de1f3425f63

commit f82b665b9419205a2a690ad75d367de1f3425f63
Author: Daniel Hung-yu Wu <hywu@google.com>
Date: Sat Mar 25 10:51:13 2017

camera3_test: verify camera orientation

Verify that the camera orientaion is 0, i.e. the top of the camera
should match the top of display.

BUG= chromium:692384 
TEST='emerge-kevin arc-camera3-test'
     'arc_camera3_test --gtest_filter=Camera3DeviceTest/*'

Change-Id: Ib93f5d409480be46b28c519c6cd46a7dcea8a774
Reviewed-on: https://chromium-review.googlesource.com/458461
Commit-Ready: Hung-yu Wu <hywu@chromium.org>
Tested-by: Hung-yu Wu <hywu@chromium.org>
Reviewed-by: Ricky Liang <jcliang@chromium.org>

[modify] https://crrev.com/f82b665b9419205a2a690ad75d367de1f3425f63/camera3_test/camera3_device_test.cc
[modify] https://crrev.com/f82b665b9419205a2a690ad75d367de1f3425f63/camera3_test/camera3_device_fixture.h