Allowing libraries for styling the Privacy Sandbox Beta app.

Test: manual
Bug: 239428231
Change-Id: Iead479f53488a642a3f5ab69b9b19acf24017039
(cherry picked from commit 05c7a584085d28bfe9353c16a0cb8ba492c88525)
diff --git a/packages/SettingsLib/CollapsingToolbarBaseActivity/Android.bp b/packages/SettingsLib/CollapsingToolbarBaseActivity/Android.bp
index 238e65e..7968e96 100644
--- a/packages/SettingsLib/CollapsingToolbarBaseActivity/Android.bp
+++ b/packages/SettingsLib/CollapsingToolbarBaseActivity/Android.bp
@@ -25,6 +25,7 @@
     min_sdk_version: "29",
     apex_available: [
         "//apex_available:platform",
+        "com.android.adservices",
         "com.android.cellbroadcast",
         "com.android.permission",
     ],