Add test for correct MBR ComponentName resolution

This is a revert revert of ag/20276586 with a modified test app name.

This test checks that a MediaButtonReceiverHolder resolves a
PendingIntent to an appropriate ComponentName that matches the
PendingIntent's creator package.

Bug: 238177121
Bug: 244312001
Test: atest FrameworksServicesTests:MediaButtonReceiverHolderTest
Change-Id: I9a3fb7ad6f91bf38b9a30456911e2ec21f516560
diff --git a/services/tests/servicestests/AndroidTest.xml b/services/tests/servicestests/AndroidTest.xml
index 9052f58..d967647 100644
--- a/services/tests/servicestests/AndroidTest.xml
+++ b/services/tests/servicestests/AndroidTest.xml
@@ -33,6 +33,7 @@
         <option name="test-file-name" value="SimpleServiceTestApp1.apk" />
         <option name="test-file-name" value="SimpleServiceTestApp2.apk" />
         <option name="test-file-name" value="SimpleServiceTestApp3.apk" />
+        <option name="test-file-name" value="MediaButtonReceiverHolderTestHelperApp.apk" />
     </target_preparer>
 
     <!-- Create place to store apks -->