service: Add empty interface for pctl:a.

src/core/hle/service/pctl/pctl.cpp

@@ -0,0 +1,16 @@
+// Copyright 2017 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "core/hle/service/pctl/pctl.h"
+#include "core/hle/service/pctl/pctl_a.h"
+
+namespace Service {
+namespace PCTL {
+
+void InstallInterfaces(SM::ServiceManager& service_manager) {
+    std::make_shared<PCTL_A>()->InstallAsService(service_manager);
+}
+
+} // namespace PCTL
+} // namespace Service