media bitstreams test: use MediaPreparer to dl test input

Bug: 65165250
Test: cts-tradefed run cts -m CtsMediaStressTestCases
Test: cts-tradefed run cts -m CtsMediaBitStreamsTestCases
Merged-In: I598edc53d0779d80e65f975d9556f158f6a19fbb
Change-Id: I446d483a604ee898a26b28b11789fa27d5ca4364
diff --git a/hostsidetests/media/bitstreams/AndroidTest.xml b/hostsidetests/media/bitstreams/AndroidTest.xml
index 2603aba..9c8da50 100644
--- a/hostsidetests/media/bitstreams/AndroidTest.xml
+++ b/hostsidetests/media/bitstreams/AndroidTest.xml
@@ -15,6 +15,9 @@
 -->
 <configuration description="Config for CTS Sample host test cases">
     <option name="config-descriptor:metadata" key="component" value="media" />
+    <target_preparer class="com.android.compatibility.common.tradefed.targetprep.MediaPreparer">
+        <option name="media-download-only" value="true" />
+    </target_preparer>
     <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
         <option name="cleanup-apks" value="true" />
         <option name="test-file-name" value="CtsMediaBitstreamsDeviceSideTestApp.apk" />