STS test for Android Security CVE-2021-0921

Test: sts-tradefed run sts-engbuild-no-spl-lock -m CtsSecurityBulletinHostTestCases -t android.security.cts.CVE_2021_0921
Bug: 199779591
Bug: 195962697
Change-Id: Ie5505d4d8d42bc5269d7ef6de9d185ef19f9bcd3
16 files changed