glue: Add ectx:aw placeholder

src/core/hle/service/glue/ectx.h

@@ -0,0 +1,21 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Core {
+class System;
+}
+
+namespace Service::Glue {
+
+class ECTX_AW final : public ServiceFramework<ECTX_AW> {
+public:
+    explicit ECTX_AW(Core::System& system_);
+    ~ECTX_AW() override;
+};
+
+} // namespace Service::Glue