upload cts test results to separate gs buckets.

Upload cts testResult.xml.gz file to cts_results_bucket.
Upload cts timestamp.zip to cts_apfe_bucket.

BUG=chromium:619209
TEST=test gs_offloader locally

Change-Id: I718a7ca492da67ccd524a6e80c08efcb78ff8e99
Reviewed-on: https://chromium-review.googlesource.com/355170
Commit-Ready: Ningning Xia <nxia@chromium.org>
Tested-by: Ningning Xia <nxia@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
diff --git a/global_config.ini b/global_config.ini
index 5eaf92d..f37ea49 100644
--- a/global_config.ini
+++ b/global_config.ini
@@ -262,6 +262,7 @@
 image_storage_server: gs://chromeos-image-archive/
 results_storage_server: gs://chromeos-autotest-results/
 cts_results_server: gs://chromeos-cts-results/
+cts_apfe_server: gs://chromeos-cts-apfe/
 # dev_server_hosts is the list of all servers running a devserver instance
 # (regardless of CrashServer/ImageServer/etc.) that should be considered for
 # monitoring/deploy actions.  You should very likely keep this list in sync with