STS test for Android Security CVE-2021-0486

Test: sts-tradefed run sts-engbuild-no-spl-lock -m CtsPermissionTestCases -t android.permission.cts.StorageEscalationTest
Bug: 182917809
Bug: 171430330
Change-Id: I963310dcba34febd5a5d53199243d2ea63df39d6
Merged-In: I963310dcba34febd5a5d53199243d2ea63df39d6
4 files changed