Fix test failure of 638-checker-inline-cache-intrinsic

JIT compilation is required for the test. So tracing can not be on.

Test: 638-checker-inline-cache-intrinsic
Change-Id: I0f2b17656c6dd1b66e3eeecde2e633acb04cc824
diff --git a/test/knownfailures.json b/test/knownfailures.json
index 5b2ebf5..5cd7888 100644
--- a/test/knownfailures.json
+++ b/test/knownfailures.json
@@ -237,7 +237,8 @@
         "tests": ["604-hot-static-interface",
                   "612-jit-dex-cache",
                   "613-inlining-dex-cache",
-                  "626-set-resolved-string"],
+                  "626-set-resolved-string",
+                  "638-checker-inline-cache-intrinsic"],
         "variant": "trace  | stream",
         "description": ["These tests expect JIT compilation, which is",
                         "suppressed when tracing."]