[RESTRICT AUTOMERGE]: Add missing @Test annotations for JUnit4 tests.

Bug: 153694007
Test: grep -rzl JUnit4 | for f in `cat /dev/stdin`; do grep -B1 -Hn @SecurityTest $f | rg -v --multiline "@Test\n.*@SecurityTest"; done | grep -v "\-\-"
Test: compile
Change-Id: I1ae379ebe2826f2e2dbee24333291fc295430de7
Merged-In: I1ae379ebe2826f2e2dbee24333291fc295430de7
diff --git a/tests/tests/security/src/android/security/cts/StagefrightTest.java b/tests/tests/security/src/android/security/cts/StagefrightTest.java
index 20b702cd..4b8d7be 100644
--- a/tests/tests/security/src/android/security/cts/StagefrightTest.java
+++ b/tests/tests/security/src/android/security/cts/StagefrightTest.java
@@ -306,6 +306,7 @@
         doStagefrightTest(R.raw.cve_2016_6766);
     }
 
+    @Test
     @SecurityTest(minPatchLevel = "2017-02")
     public void testStagefright_cve_2016_2429_b_27211885() throws Exception {
         doStagefrightTest(R.raw.cve_2016_2429_b_27211885,
@@ -1111,6 +1112,7 @@
     doStagefrightTest(R.raw.bug_37430213);
     }
 
+    @Test
     @SecurityTest(minPatchLevel = "2017-03")
     public void testStagefright_cve_2017_0474() throws Exception {
         doStagefrightTest(R.raw.cve_2017_0474, 120000);