Make sure test APK is build when test is run via test mapping

Currently the test runs fine with atest locally, but fails in CI
with "TargetSetupError: DummyDPC.apk not found". With test_suites
it will be packaged and should be available in CI as well.

Bug: 141115315
Test: atest -c ManagedProfileLifecycleStressTest
Change-Id: I5e7138a6e1642cca1627060d76dd0c078c4f96f6

tests/ManagedProfileLifecycleStressTest/app/DummyDPC/Android.bp

@@ -17,4 +17,5 @@ android_test {
     defaults: ["cts_defaults"],
     srcs: ["src/**/*.java"],
     sdk_version: "current",
+    test_suites: ["device-tests"],
 }