Add container property to a couple more aconfig declarations

Bug: 330354107
Test: CI
Change-Id: I196d9165725ab7866ef2ebd988bb622f262641c1
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index 3e5f1cb..fa11278 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -379,6 +379,7 @@
 aconfig_declarations {
     name: "com.android.internal.os.flags-aconfig",
     package: "com.android.internal.os",
+    container: "system",
     srcs: ["core/java/com/android/internal/os/flags.aconfig"],
 }
 
@@ -853,6 +854,7 @@
 aconfig_declarations {
     name: "com.android.server.contextualsearch.flags-aconfig",
     package: "com.android.server.contextualsearch.flags",
+    container: "system",
     srcs: ["services/contextualsearch/flags/flags.aconfig"],
 }