Add luni-crypto-tests to art module test exports

Test: Treehugger
Change-Id: I34ea56e8a475d440bcc7076ea5203b0636a70ba0
diff --git a/build/sdk/Android.bp b/build/sdk/Android.bp
index 361df96..a9048d0 100644
--- a/build/sdk/Android.bp
+++ b/build/sdk/Android.bp
@@ -69,6 +69,9 @@
         "core-tests-support",
         "okhttp-tests-nojarjar",
     ],
+    java_tests: [
+        "libcore-crypto-tests",
+    ],
     native_shared_libs: [
         "libjavacoretests",
     ],