fix CTS unit test

Bug: 37813728
Test: unit test
Change-Id: I0e361900b4f6c0ee9bf54e4b16db18fbdb44faca
diff --git a/tests/tests/background/AndroidTest.xml b/tests/tests/background/AndroidTest.xml
index a02f92d..96e3e9b 100644
--- a/tests/tests/background/AndroidTest.xml
+++ b/tests/tests/background/AndroidTest.xml
@@ -14,7 +14,7 @@
      limitations under the License.
 -->
 <configuration description="Config for background restrictions CTS test cases">
-    <target_preparer class="com.android.compatibility.common.tradefed.targetprep.ApkInstaller">
+    <target_preparer class="com.android.tradefed.targetprep.suite.SuiteApkInstaller">
         <option name="cleanup-apks" value="true" />
         <option name="test-file-name" value="CtsBackgroundRestrictionsTestCases.apk" />
     </target_preparer>