Create dedicated bugfix flag for vertical swipes.

This changelist introduces a new flag to track vertical swipe
behavior in hub mode as a bugfix.

Test: manual - ensured new flag is still used.
Fixes: 340177049
Flag: com.android.systemui.hubmode_fullscreen_vertical_swipe_fix
Change-Id: I1455077edcf32cae539a82abc1fa82ae26af4875
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 0d337eb..1d77dd7 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -1233,6 +1233,17 @@
 }
 
 flag {
+  name: "hubmode_fullscreen_vertical_swipe_fix"
+  namespace: "systemui"
+  description: "Bug fix that enables fullscreen vertical swiping in hub mode to bring up and down the bouncer and shade"
+  bug: "340177049"
+  metadata {
+      purpose: PURPOSE_BUGFIX
+  }
+}
+
+
+flag {
    namespace: "systemui"
    name: "remove_update_listener_in_qs_icon_view_impl"
    description: "Remove update listeners in QsIconViewImpl class to avoid memory leak."