Add aconfig flag for udfps refactor

Test: n/a
Bug: 279440316
Flag: ACONFIG device_entry_udfps_refactor DEVELOPMENT
Change-Id: I18eb9f2dd00d8e3c74a96d48f1ce8b4cc2a64f17
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 9700bc6..8f350a7 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -69,6 +69,14 @@
 }
 
 flag {
+    name: "device_entry_udfps_refactor"
+    namespace: "systemui"
+    description: "Refactoring device entry UDFPS icon to use modern architecture and "
+        "consolidating it with the lock/unlock icon to create a combined DeviceEntryIconView"
+    bug: "279440316"
+}
+
+flag {
     name: "visual_interruptions_refactor"
     namespace: "systemui"
     description: "Enables the refactored version of the code to decide when notifications "