[autotest] Fix auth_server_unittest.py

It failed because it was trying to open a port <1024 as non-root.
Setting the HTTP port now makes it pass (but also spit out lots of error
messages?).

TEST=ran it
BUG=chromium-os:37989

Change-Id: Id13e5037868a013bc7a0878b9021d84b4225db42
Reviewed-on: https://gerrit.chromium.org/gerrit/43399
Commit-Queue: Alex Miller <milleral@chromium.org>
Reviewed-by: Alex Miller <milleral@chromium.org>
Tested-by: Alex Miller <milleral@chromium.org>
diff --git a/utils/unittest_suite.py b/utils/unittest_suite.py
index 09221c0..f34c383 100755
--- a/utils/unittest_suite.py
+++ b/utils/unittest_suite.py
@@ -62,6 +62,7 @@
         ))
 
 LONG_RUNTIME = set((
+    'auth_server_unittest.py',
     'base_barrier_unittest.py',
     'logging_manager_test.py',
     ))