Fix order of saved gallery images

Bug: 10640466
diff --git a/src/com/android/launcher3/SavedWallpaperImages.java b/src/com/android/launcher3/SavedWallpaperImages.java
index afeea2d..9766a8a 100644
--- a/src/com/android/launcher3/SavedWallpaperImages.java
+++ b/src/com/android/launcher3/SavedWallpaperImages.java
@@ -58,7 +58,7 @@
                 null, // args to select query
                 null,
                 null,
-                null,
+                ImageDb.COLUMN_ID + " DESC",
                 null);
 
         while (result.moveToNext()) {