Keep cl trybots in sync with cq.

NOTRY=true

Review URL: https://codereview.chromium.org/929793005

Cr-Commit-Position: refs/heads/master@{#26730}

PRESUBMIT.py

@@ -244,6 +244,7 @@ def GetPreferredTryMasters(project, change):
   return {
     'tryserver.v8': {
       'v8_linux_rel': set(['defaulttests']),
+      'v8_linux_nodcheck_rel': set(['defaulttests']),
       'v8_linux64_rel': set(['defaulttests']),
       'v8_linux64_asan_rel': set(['defaulttests']),
       'v8_win_rel': set(['defaulttests']),