Set pm.BackgroundDexOptService as the source of true

The real dexopt maintainance job is
com.android.server.pm.BackgroundDexOptService, and not
com.android.server.BackgroundDexOptJobService

Partial revert of commit 096d304ae3d85c1bfcda1a1d9cd4eb13d0815500.

Test: manual inspection
Bug: 36140426
Change-Id: I983ac91117f107282095fa7eefdbce08e0dcfce3
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index c991f22..58e4051 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -3593,7 +3593,7 @@
                  android:permission="android.permission.BIND_JOB_SERVICE" >
         </service>
 
-        <service android:name="com.android.server.BackgroundDexOptJobService"
+        <service android:name="com.android.server.pm.BackgroundDexOptService"
                  android:exported="true"
                  android:permission="android.permission.BIND_JOB_SERVICE">
         </service>