[RESTRICT AUTOMERGE] Updated CTS test for Android Security b/17769851

Updated the return code to return EXIT_FAILURE when the test exits before hitting the vulnerability

Bug: 17769851
Bug: 72510314
Test: Ran the new testcase on android-8.0.0_r11 with/without patch

Change-Id: I6948de2f445ae13fdff1b98103a6ac12eae212ad
1 file changed