Move bluetooth_qs_tile_dialog_auto_on_toggle to settingslib.

Test: atest SystemUITests
Bug: b/316822488 b/316985153

Change-Id: I289fce00ed424c8422e2dc6a9e51a68ffb8908f7
diff --git a/packages/SettingsLib/aconfig/settingslib.aconfig b/packages/SettingsLib/aconfig/settingslib.aconfig
index bab6781..d622eb8 100644
--- a/packages/SettingsLib/aconfig/settingslib.aconfig
+++ b/packages/SettingsLib/aconfig/settingslib.aconfig
@@ -17,3 +17,9 @@
     }
 }
 
+flag {
+   name: "bluetooth_qs_tile_dialog_auto_on_toggle"
+   namespace: "bluetooth"
+   description: "Displays the auto on toggle in the bluetooth QS tile dialog"
+   bug: "316985153"
+}