[pm] fix PackageManagerServiceTest

BUG: 285152762
Test: atest com.android.server.pm.PackageManagerServiceTest
Change-Id: I8556f027c425a746424aa19fdb7fede38205ffea
diff --git a/services/tests/PackageManagerServiceTests/server/AndroidTest.xml b/services/tests/PackageManagerServiceTests/server/AndroidTest.xml
index 1b93527..320114f 100644
--- a/services/tests/PackageManagerServiceTests/server/AndroidTest.xml
+++ b/services/tests/PackageManagerServiceTests/server/AndroidTest.xml
@@ -24,6 +24,11 @@
         <option name="test-file-name" value="PackageManagerServiceServerTests.apk" />
     </target_preparer>
 
+    <!-- Load additional APKs onto device -->
+    <target_preparer class="com.android.compatibility.common.tradefed.targetprep.FilePusher">
+        <option name="push" value="StubTestApp.apk->/data/local/tmp/servicestests/StubTestApp.apk"/>
+    </target_preparer>
+
     <option name="test-tag" value="PackageManagerServiceServerTests" />
     <test class="com.android.tradefed.testtype.AndroidJUnitTest" >
         <option name="package" value="com.android.server.pm.test.service.server" />