apm: Refactor service impl. to support multiple ports.

src/core/hle/service/apm/interface.h

@@ -0,0 +1,27 @@
+// Copyright 2018 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/service.h"
+
+namespace Service {
+namespace APM {
+
+class APM final : public ServiceFramework<APM> {
+public:
+    APM(std::shared_ptr<Module> apm, const char* name);
+    ~APM() = default;
+
+private:
+    void OpenSession(Kernel::HLERequestContext& ctx);
+
+    std::shared_ptr<Module> apm;
+};
+
+/// Registers all AM services with the specified service manager.
+void InstallInterfaces(SM::ServiceManager& service_manager);
+
+} // namespace APM
+} // namespace Service