Include settings flags into flags_packages

Required for resource & manifest flags.

Bug: 332202168
Flag: EXEMPT Modify Android.bp
Test: Set android:featureFlag to manifest Service locally
Change-Id: Iaf02e494b1a23b92616a5ff5e8fb84e93b4a340e
diff --git a/Android.bp b/Android.bp
index 0a58ee8..28c3148 100644
--- a/Android.bp
+++ b/Android.bp
@@ -130,6 +130,7 @@
         "ims-common",
     ],
     flags_packages: [
+        "aconfig_settings_flags",
         "android.app.flags-aconfig",
     ],
 }