ATest: Add integration to test help option.

Bug: 178091162
Test: tools/asuite/atest/atest_integration_tests.py -cy
Change-Id: Ibfa5f2f9446580dfee161acd82132592fc04ecb6
diff --git a/atest/INTEGRATION_TESTS b/atest/INTEGRATION_TESTS
index 268e52a..3d5fd7a 100644
--- a/atest/INTEGRATION_TESTS
+++ b/atest/INTEGRATION_TESTS
@@ -95,3 +95,6 @@
 ###Purpose: Test with Paramatize Java testcases###
 CtsWindowManagerDeviceTestCases:android.server.wm.DisplayCutoutTests#testDisplayCutout_default
 cts/tests/framework/base/windowmanager/src/android/server/wm/DisplayCutoutTests.java#testDisplayCutout_default
+
+###[Option verify]###
+--help