[1/n] Compat UI status flag creation

Flag: EXEMPT Flag definition
Bug: 350953004
Test: m

Change-Id: I9c941cf07fb69eb86bacddfc8f3271a229300bc4
diff --git a/core/java/android/window/flags/lse_desktop_experience.aconfig b/core/java/android/window/flags/lse_desktop_experience.aconfig
index 1362f7b..3f1c06a 100644
--- a/core/java/android/window/flags/lse_desktop_experience.aconfig
+++ b/core/java/android/window/flags/lse_desktop_experience.aconfig
@@ -176,3 +176,10 @@
     description: "Enables desktop windowing app handle education"
     bug: "348208342"
 }
+
+flag {
+    name: "enable_compat_ui_visibility_status"
+    namespace: "lse_desktop_experience"
+    description: "Enables the tracking of the status for compat ui elements."
+    bug: "350953004"
+}