cli: Fix import paths to use cli/cros.

As part of the Brillo entry point, we're restructuring chromite/cros to
chromite/cli/cros instead. This CL just fixes module import paths to
point to the new location to make the restructuring functional.

See brbug.com/557 for more info.

BUG=brillo:557
TEST=cbuildbot/run_tests

Change-Id: I70c783f40e207090c5babf7ac149543613c8817e
Reviewed-on: https://chromium-review.googlesource.com/261183
Reviewed-by: David Pursell <dpursell@chromium.org>
Commit-Queue: David Pursell <dpursell@chromium.org>
Trybot-Ready: David Pursell <dpursell@chromium.org>
Tested-by: David Pursell <dpursell@chromium.org>
diff --git a/scripts/test_image.py b/scripts/test_image.py
index 5e8cbb7..6197206 100644
--- a/scripts/test_image.py
+++ b/scripts/test_image.py
@@ -10,10 +10,10 @@
 import unittest
 
 from chromite.cbuildbot import constants
-from chromite.cros.tests import image_test
 from chromite.lib import commandline
 from chromite.lib import cros_build_lib
 from chromite.lib import cros_logging as logging
+from chromite.lib import image_test
 from chromite.lib import osutils
 
 
@@ -66,7 +66,7 @@
   # We use a different prefix here so that unittest DO NOT pick up the
   # image tests automatically because they depend on a proper environment.
   loader.testMethodPrefix = 'Test'
-  all_tests = loader.loadTestsFromName('chromite.cros.tests.image_test')
+  all_tests = loader.loadTestsFromName('chromite.lib.image_test')
   forgiving = image_test.ImageTestSuite()
   non_forgiving = image_test.ImageTestSuite()
   for suite in all_tests: