Adding a flag to support activity overlay on home screen

Bug: 273828110
Flag: aconfig use_activity_overlay disabled
Test: N/A
Change-Id: Ic29c2c21da22554213a1792a38caf6907438c86d
diff --git a/aconfig/launcher.aconfig b/aconfig/launcher.aconfig
index 7032d5f..c13c68c 100644
--- a/aconfig/launcher.aconfig
+++ b/aconfig/launcher.aconfig
@@ -147,3 +147,10 @@
   description: "Enables widget suggestions in widget picker to be displayed in categories"
   bug: "318410881"
 }
+
+flag {
+    name: "use_activity_overlay"
+    namespace: "launcher"
+    description: "Use an activity for home screen overlay"
+    bug: "273828110"
+}