Fix resource issue in folders of partner layouts

-> Resources in folders were not being loaded with the partner
   apk resources. This caused any number of weird things to appear
   in folders of partner default layouts

Change-Id: I7d373e53028c5c327980c15d004993af997de553
(cherry picked from commit 43f3ca0f8c)

src/com/android/launcher3/LauncherProvider.java

@@ -1404,7 +1404,7 @@ public class LauncherProvider extends ContentProvider {
                         }
                     } else if (TAG_FOLDER.equals(name)) {
                         // Folder contents are nested in this XML file
-                        added = loadFolder(db, values, mContext.getResources(), parser);
+                        added = loadFolder(db, values, res, parser);
 
                     } else if (TAG_PARTNER_FOLDER.equals(name)) {
                         // Folder contents come from an external XML resource