Bug 1333003 part 7 - Add jittest-chunked to the suites so the tests are run. r=grenade

MozReview-Commit-ID: 8C5Qr4WuBTu

--HG--
extra : rebase_source : a2ffb528058a20d2e0d8fcd05a9e4a56e97fa051

testing/mozharness/configs/unittests/win_taskcluster_unittest.py

@@ -229,7 +229,8 @@ config = {
         "gtest": []
     },
     "all_jittest_suites": {
-        "jittest": []
+        "jittest": [],
+        "jittest-chunked": [],
     },
     "all_mozbase_suites": {
         "mozbase": []