gooftool: Fix a bug when recording VPD

BUG=None
TEST=None

Change-Id: Ie4507610e08a322e7dfd36acbf00965d258a13f9
Reviewed-on: https://chromium-review.googlesource.com/1201688
Commit-Ready: Chun-Tsen Kuo <chuntsen@chromium.org>
Tested-by: Chun-Tsen Kuo <chuntsen@chromium.org>
Reviewed-by: Ting Shen <phoenixshen@chromium.org>
Reviewed-by: Wei-Han Chen <stimim@chromium.org>
diff --git a/py/gooftool/commands.py b/py/gooftool/commands.py
index c14d2e4..9329d28 100755
--- a/py/gooftool/commands.py
+++ b/py/gooftool/commands.py
@@ -754,7 +754,7 @@
                               infile=options.hwid_vpd_data_file)
 
   event_log.Log('probed_results', probed_results=FilterDict(probed_results))
-  event_log.Log('vpd', vpd=FilterDict(vpd) if vpd is None else None)
+  event_log.Log('vpd', vpd=FilterDict(vpd))
 
   hwid_utils.VerifyHWID(database, encoded_string, probed_results,
                         device_info, vpd, options.rma_mode)