Services: Vi shouldn't be responsible for creating nvflinger.

It is now created during Service initialization and passed to all the services that need it.

src/core/hle/service/vi/vi.h

@@ -39,7 +39,8 @@ private:
 };
 
 /// Registers all VI services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager);
+void InstallInterfaces(SM::ServiceManager& service_manager,
+                       std::shared_ptr<NVFlinger::NVFlinger> nv_flinger);
 
 } // namespace VI
 } // namespace Service