Disable 175-alloc-big-bignums in more configs

It now runs much more Java code, which makes it timeout whenever
that runs too slowly.

Test: Treehugger
Change-Id: I4b37ffda8e9bde66ac14c30f7bf466ab2eadba04
diff --git a/test/knownfailures.json b/test/knownfailures.json
index bd085f9..5117859 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -1321,7 +1321,7 @@
     },
     {
         "tests": ["175-alloc-big-bignums"],
-        "variant": "interpreter | interp-ac",
+        "variant": "interpreter | interp-ac | trace | no-image",
         "description": "Interpreting BigInteger.add() is too slow (timeouts)"
     },
     {