hle: Add service stubs for apm and appletOE.

src/core/hle/service/am/am.cpp

@@ -0,0 +1,18 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "common/logging/log.h"
+#include "core/hle/ipc_helpers.h"
+#include "core/hle/service/am/am.h"
+#include "core/hle/service/am/applet_oe.h"
+
+namespace Service {
+namespace AM {
+
+void InstallInterfaces(SM::ServiceManager& service_manager) {
+    std::make_shared<AppletOE>()->InstallAsService(service_manager);
+}
+
+} // namespace AM
+} // namespace Service