Make uploading to Gerrit the default for Skia

BUG=skia:5612

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4621
# Does not get tested with CQ.
NOTRY=true

Change-Id: I8d3fbfc6e557948cff7722f0b42ea09dc9be68e1
Reviewed-on: https://skia-review.googlesource.com/4621
Commit-Queue: Ravi Mistry <rmistry@google.com>
Reviewed-by: Eric Boren <borenet@google.com>
diff --git a/codereview.settings b/codereview.settings
index f8e8c9d..76c4349 100644
--- a/codereview.settings
+++ b/codereview.settings
@@ -5,4 +5,5 @@
 BUG_PREFIX: skia:
 TRYSERVER_SVN_URL: https://skia-try.googlecode.com/svn
 PROJECT: skia
+GERRIT_HOST: True
 RUN_POST_UPLOAD_HOOK: True