Create ACONFIG flag for App Clips Backlinks

Test: Build
Bug: 300307759
Flag: ACONFIG com.android.systemui.app_clips_backlinks DISABLED

Change-Id: I05cbeec80bba21649770a8448642f37f581ca75a
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index fd90bd9..914537e 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -858,3 +858,10 @@
     purpose: PURPOSE_BUGFIX
   }
 }
+
+flag {
+  name: "app_clips_backlinks"
+  namespace: "systemui"
+  description: "Enables Backlinks improvement feature in App Clips"
+  bug: "300307759"
+}