ART: Disable libcore crypto test failing on target

Another test failing due to missing loop network device on hammerhead
and volantis bots. We disable it until the device configuration issue
is fixed.

Change-Id: I5b4610d706a8e4bdf178764f64f2d4359a83682d
diff --git a/tools/libcore_failures.txt b/tools/libcore_failures.txt
index c7d6ea2..6baae7f 100644
--- a/tools/libcore_failures.txt
+++ b/tools/libcore_failures.txt
@@ -65,7 +65,8 @@
   description: "Failing due to switched off network stack on volantisg.",
   result: EXEC_FAILED,
   modes: [device],
-  names: ["org.apache.harmony.luni.tests.internal.net.www.protocol.http.HttpURLConnectionTest",
+  names: ["libcore.javax.crypto.CipherTest#testCipherInitWithCertificate",
+          "org.apache.harmony.luni.tests.internal.net.www.protocol.http.HttpURLConnectionTest",
           "org.apache.harmony.luni.tests.internal.net.www.protocol.https.HttpsURLConnectionTest",
           "org.apache.harmony.luni.tests.java.net.URLConnectionTest"]
 },