Add a flag for the new Volume visuals

Flag: EXEMPT add flag
Fixes: 369990683
Test: passes presubmits
Change-Id: Iefd221716095770584339ddfaa2c0c692417ce0b
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index f8383d9..2f4055b8 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -569,6 +569,13 @@
 }
 
 flag {
+    name: "volume_redesign"
+    namespace: "systemui"
+    description: "Enables Volume BC25 visuals update"
+    bug: "368308908"
+}
+
+flag {
     name: "clipboard_shared_transitions"
     namespace: "systemui"
     description: "Show shared transitions from clipboard"