STS test for Android Security CVE-2021-0306

Test: sts-tradefed run sts-engbuild-no-spl-lock -m CtsAppSecurityHostTestCases -t android.appsecurity.cts.PermissionEscalationTest#testNoPermissionEscalationAfterReboot
Bug: 173531291
Bug: 154505240
Bug: 173530931
Bug: 168319670
Change-Id: I9b6a1a7434b6196375894462aeed5c770fb10af6
3 files changed