Disable test 152 for gcstress

Bug: 35800768

Test: test-art-host-run-test ART_TEST_GC_STRESS=true

Change-Id: I6f5cdbb445b9cad6f57ffa5738c8c9e8ec3b9c98
diff --git a/test/knownfailures.json b/test/knownfailures.json
index 784f49c..6caf7b0 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -106,6 +106,11 @@
                         "slowness of gcstress makes this bad."]
     },
     {
+        "test": "152-dead-large-object",
+        "variant": "gcstress",
+        "description": ["152-dead-large-object requires a heap larger than what gcstress uses."]
+    },
+    {
         "tests": ["908-gc-start-finish",
                   "913-heaps"],
         "variant": "gcstress",