CTS exclude STS tests

Bug: 174501378
Bug: 194502837
Test: Try to run an STS test from CTS
Test: cts-tradefed run cts -m CtsSecurityBulletinHostTestCases -t android.security.cts.CVE_2021_0481 # test should't run
Change-Id: I81dd4482fed87211e28609c3f7b9917891803471
2 files changed