[AUDIO LOOPBACK TEST] Added Audio Latency Stress Config file

Added config file for audio latency stress test - i.e. a test that
will run 1,000 iterations of "Audio Latency" test (go/android-media)

Bug: 35153171
Fixes:
Test: tradefed.sh run google/test/framework/media/audio-loopback-stress
--iterations 1000 -s <device serial number>
Change-Id: I5eeecaf90d3c19ec3bcf37ae9e13bb61b464f92a
diff --git a/res/config/google/test/framework/media/audio-loopback-stress.xml b/res/config/google/test/framework/media/audio-loopback-stress.xml
new file mode 100644
index 0000000..25bd99f
--- /dev/null
+++ b/res/config/google/test/framework/media/audio-loopback-stress.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2017 Google Inc. All Rights Reserved -->
+<configuration description="Runs audio jitter tests">
+
+  <option name="test-tag" value="AudioLoopbackStress" />
+
+  <target_preparer class="com.google.android.tradefed.targetprep.GoogleDeviceSetup">
+    <option name="screen-always-on" value="on" />
+    <option name="screen-adaptive-brightness" value="off" />
+    <option name="disable-audio" value="false"/>
+    <option name="screen-saver" value="off"/>
+    <option name="set-property" key="audio.safemedia.bypass" value="1"/>
+  </target_preparer>
+
+  <target_preparer class="com.android.tradefed.targetprep.InstallApkSetup">
+    <option name="apk-path" value="/google/data/ro/teams/tradefed/testdata/media/apps/Loopback.apk" />
+  </target_preparer>
+
+  <test class="com.android.media.tests.AudioLoopbackTest">
+    <option name="iterations" value="1000" />
+  </test>
+
+</configuration>