Add container property to aconfig_declarations.

Bug: 311155208
Test: Unit test
Change-Id: I7b187138856d0144203961e82b6dad5e2f8eed9d
diff --git a/apex/Android.bp b/apex/Android.bp
index 0791497..0a5063f 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -8,6 +8,8 @@
     deps: [
         "blueprint",
         "soong",
+        "soong-aconfig",
+        "soong-aconfig-codegen",
         "soong-android",
         "soong-bazel",
         "soong-bpf",