tast: update file path to see public vars dir

BUG=chromium:1085320
TEST=utils/unittest_suite.py  server.site_tests.tast.tast_unittest

Cq-Depend: chromium:2228936
Change-Id: I5949227c0d0a28e7817820f1e7ad7a3ffaf9dea8
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/autotest/+/2228597
Commit-Queue: Keigo Oka <oka@chromium.org>
Tested-by: Keigo Oka <oka@chromium.org>
Reviewed-by: Shuhei Takahashi <nya@chromium.org>
diff --git a/server/site_tests/tast/tast.py b/server/site_tests/tast/tast.py
index e31a74a..4f168e1 100644
--- a/server/site_tests/tast/tast.py
+++ b/server/site_tests/tast/tast.py
@@ -88,7 +88,7 @@
     _SSP_REMOTE_BUNDLE_DIR = os.path.join(_SSP_ROOT, 'bundles/remote')
     _SSP_REMOTE_DATA_DIR = os.path.join(_SSP_ROOT, 'data')
     _SSP_REMOTE_TEST_RUNNER_PATH = os.path.join(_SSP_ROOT, 'remote_test_runner')
-    _SSP_DEFAULT_VARS_DIR_PATH = os.path.join(_SSP_ROOT, 'vars/private')
+    _SSP_DEFAULT_VARS_DIR_PATH = os.path.join(_SSP_ROOT, 'vars')
 
     # Prefix added to Tast test names when writing their results to TKO
     # status.log files.