Start loading libandroid_runtime.so

Enable android.util.Log's native code

Test: ./ravenwood/run-ravenwood-tests.sh
Bug: 318393625

Change-Id: I0ec607586d71b1cc34b71db67249e110edc304df
diff --git a/ravenwood/Android.bp b/ravenwood/Android.bp
index 132804f..674d746 100644
--- a/ravenwood/Android.bp
+++ b/ravenwood/Android.bp
@@ -47,6 +47,7 @@
     ],
     libs: [
         "framework-minus-apex.ravenwood",
+        "ravenwood-junit",
     ],
     visibility: ["//visibility:private"],
 }