lib: skip Journal in redfish enumerate

Symptom:
"Verify Redfish Unresponsive URL paths" test item got failed.
ValueError: The HTTP status code was not valid:
status:                                           400
valid_status_codes:
  [0]:                                            200
  [1]:                                            404
  [2]:                                            405
  [3]:                                            500

Root cause:
When doing Redfish Enumerate Request into /redfish/v1/Managers/bmc/LogServices/Journal,
The response status code return 400 that is not in valid_status_codes list.

Seems journal entries will be overwrited when entries full.
Thus, when enumerating the overwrited log entries will got failed.
Currently, "OverWritePolicy" is "WrapsWhenFull" in LogService.json schema.

Solution:
Skip Journal in redfish enumerate request.

Tested:
Run all robot test cases.

Signed-off-by: Tim Lee <timlee660101@gmail.com>
Change-Id: Iad7c2bf83f2645fcbf191400267f2a2f68e31806
diff --git a/lib/bmc_redfish_utils.py b/lib/bmc_redfish_utils.py
index a361146..1ce3231 100644
--- a/lib/bmc_redfish_utils.py
+++ b/lib/bmc_redfish_utils.py
@@ -294,6 +294,7 @@
                 #          '/redfish/v1/Managers/bmc#/Oem'
                 if ('JsonSchemas' in resource) or ('SessionService' in resource)\
                         or ('PostCodes' in resource) or ('Registries' in resource)\
+                        or ('Journal' in resource)\
                         or ('#' in resource):
                     continue