Fixing the test package name.

Change-Id: I517f812dfadf7e0b17791b23c27c0bff39797c57
(cherry picked from commit ee5bbc61e9c775fcad24efbb3fe698381046f2a5)
diff --git a/tests/AndroidManifest.xml b/tests/AndroidManifest.xml
index bb024f1..5dca4ec 100644
--- a/tests/AndroidManifest.xml
+++ b/tests/AndroidManifest.xml
@@ -25,6 +25,6 @@
     </application>
 
     <instrumentation android:name="android.test.InstrumentationTestRunner"
-        android:targetPackage="com.android.volley" />
+        android:targetPackage="com.android.volley.tests" />
 
 </manifest>