Restore "Late-enable" logging

It is referenced from "Debugging Android JNI with CheckJNI"

Change-Id: I155138df4a894b33f0a1ae03344442a144a5fced
diff --git a/runtime/native/dalvik_system_ZygoteHooks.cc b/runtime/native/dalvik_system_ZygoteHooks.cc
index f541633..7490e6a 100644
--- a/runtime/native/dalvik_system_ZygoteHooks.cc
+++ b/runtime/native/dalvik_system_ZygoteHooks.cc
@@ -58,12 +58,12 @@
     Runtime* runtime = Runtime::Current();
     JavaVMExt* vm = runtime->GetJavaVM();
     if (!vm->check_jni) {
-      VLOG(jni) << "Late-enabling -Xcheck:jni";
+      LOG(INFO) << "Late-enabling -Xcheck:jni";
       vm->SetCheckJniEnabled(true);
       // There's only one thread running at this point, so only one JNIEnv to fix up.
       Thread::Current()->GetJniEnv()->SetCheckJniEnabled(true);
     } else {
-      VLOG(jni) << "Not late-enabling -Xcheck:jni (already on)";
+      LOG(INFO) << "Not late-enabling -Xcheck:jni (already on)";
     }
     debug_flags &= ~DEBUG_ENABLE_CHECKJNI;
   }