Relanding: "Add our integration tests to cts"

This reverts commit 70bf068c9fb31a5e215701cabe1226451521639d.

Bug: 218303240
Test: run the test on
google_required_freeze/test-mapping-presubmit/vendor_img_cf_x86_rvc

Change-Id: I2ac653ee74876fe792b495bdeb31e8e34f8877f2
diff --git a/authfs/tests/Android.bp b/authfs/tests/Android.bp
index 30606e5..1b5cf09 100644
--- a/authfs/tests/Android.bp
+++ b/authfs/tests/Android.bp
@@ -15,6 +15,7 @@
     ],
     test_suites: ["general-tests"],
     data_device_bins: ["open_then_run"],
+    per_testcase_directory: true,
     data: [
         ":authfs_test_files",
         ":MicrodroidTestApp",