fix(fullscreen border): Add flag for updating corner radius on display changed

Bug: 335113174
Test: NA. create aconfig flag
Flag: com.android.systemui.update_corner_radius_on_display_changed
Change-Id: Idbccb99a27943302aa44b5bbef8255b24fd6c7b4
diff --git a/packages/SystemUI/aconfig/accessibility.aconfig b/packages/SystemUI/aconfig/accessibility.aconfig
index 0861454..8860452 100644
--- a/packages/SystemUI/aconfig/accessibility.aconfig
+++ b/packages/SystemUI/aconfig/accessibility.aconfig
@@ -90,6 +90,16 @@
 }
 
 flag {
+    name: "update_corner_radius_on_display_changed"
+    namespace: "accessibility"
+    description: "Updates the corner radius to the magnification fullscreen border when the display changes."
+    bug: "335113174"
+    metadata {
+      purpose: PURPOSE_BUGFIX
+    }
+}
+
+flag {
     name: "hearing_devices_dialog_related_tools"
     namespace: "accessibility"
     description: "Shows the related tools for hearing devices dialog."