Disable instant mode for StagefrightTest

The current crash parser implementation relies on the filesystem which
is not accessible during instant app mode.

Bug: 169063905
Test: atest CtsSecurityTestCases:android.security.cts.StagefrightTest#testStagefright_cve_2019_14004 -- --abi arm64-v8a --instant
Change-Id: Ie3f2c5c802e80fdaf4cf1a1c0fc751769c39afc9
Merged-In: Ie3f2c5c802e80fdaf4cf1a1c0fc751769c39afc9
diff --git a/tests/tests/security/src/android/security/cts/StagefrightTest.java b/tests/tests/security/src/android/security/cts/StagefrightTest.java
index 6181567..aae34ca 100644
--- a/tests/tests/security/src/android/security/cts/StagefrightTest.java
+++ b/tests/tests/security/src/android/security/cts/StagefrightTest.java
@@ -41,6 +41,7 @@
 import android.opengl.GLES11Ext;
 import android.os.Looper;
 import android.os.SystemClock;
+import android.platform.test.annotations.AppModeFull;
 import android.platform.test.annotations.SecurityTest;
 import android.test.InstrumentationTestCase;
 import android.util.Log;
@@ -75,6 +76,7 @@
  * Verify that the device is not vulnerable to any known Stagefright
  * vulnerabilities.
  */
+@AppModeFull
 @SecurityTest
 public class StagefrightTest extends InstrumentationTestCase {
     static final String TAG = "StagefrightTest";