use autovalue for ImportKeyringParcel

OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/EmailKeyHelper.java

@@ -65,7 +65,7 @@ public class EmailKeyHelper {
 
         @Override
         public ImportKeyringParcel createOperationInput() {
-            return new ImportKeyringParcel(mKeyList, mKeyserver);
+            return ImportKeyringParcel.createImportKeyringParcel(mKeyList, mKeyserver);
         }
     }