Migrate frameworks/base/apct-tests/perftests/multiuser to androidx.test

See go/jetpack-test-android-migration

Test: make checkbuild
Change-Id: I73fc89de69f1eb54896a2dc19cf93b22bc4f049d
diff --git a/apct-tests/perftests/multiuser/AndroidManifest.xml b/apct-tests/perftests/multiuser/AndroidManifest.xml
index adb316f..e96771c 100644
--- a/apct-tests/perftests/multiuser/AndroidManifest.xml
+++ b/apct-tests/perftests/multiuser/AndroidManifest.xml
@@ -25,7 +25,7 @@
         <uses-library android:name="android.test.runner" />
     </application>
 
-    <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+    <instrumentation android:name="androidx.test.runner.AndroidJUnitRunner"
             android:targetPackage="com.android.perftests.multiuser"/>
 
 </manifest>