Use IA category in SysemUpdater so it shows up in CarSettings.

Bug: 122820237

Test: build and deploy
Change-Id: Icbcdb989815ad717320f437b869d826b489df2c7
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 1a77c05..ef8e8a1 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -45,7 +45,7 @@
             <meta-data android:name="com.android.settings.icon"
                        android:resource="@drawable/ic_system_update_alt_black_48dp" />
             <meta-data android:name="com.android.settings.category"
-                       android:value="com.android.settings.category.system" />
+                       android:value="com.android.settings.category.ia.system" />
         </activity>
     </application>
 </manifest>