[CQ] Update new trybots.

BUG=chromium:535160, chromium:561530
TBR=tandrii@chromium.org, sergiyb@chromium.org, akuegel@chromium.org
LOG=n
NOTRY=true

Review URL: https://codereview.chromium.org/1479003004

Cr-Commit-Position: refs/heads/master@{#32364}

infra/config/cq.cfg

@@ -40,12 +40,16 @@ verifiers {
       builders { name: "v8_linux_rel" }
       builders { name: "v8_mac_rel" }
       builders { name: "v8_presubmit" }
-      builders { name: "v8_win64_rel" }
+      builders { name: "v8_win64_rel_ng" }
+      builders {
+        name: "v8_win64_rel_ng_triggered"
+        triggered_by_cq: false
+      }
       builders { name: "v8_win_compile_dbg" }
       builders { name: "v8_win_nosnap_shared_compile_rel" }
       builders { name: "v8_win_rel" }
       builders {
-        name: "v8_win64_rel_ng"
+        name: "v8_win_rel_ng"
         experiment_percentage: 30
       }
     }