[hle] correct IClientProcess::RegisterClient, impl cmd 3100,3102 for ns:vm (#4376)

ldn had wrong signature
ns:vm had missing function stubs that would make some games assert on missing impl

Signed-off-by: lizzie <lizzie@eden-emu.dev>

- [x] I have read and followed the [Contribution Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/CONTRIBUTING.md#code-contributions).
- [x] I have read and followed the [AI Policy](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/AI.md)
- [x] I have read and followed the [Coding Guidelines](https://git.eden-emu.dev/eden-emu/eden/src/branch/master/docs/policies/Coding.md) to the best of my ability.

-------------------

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4376
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: Maufeat <sahyno1996@gmail.com>

src/core/hle/service/spl/csrng.cpp

@@ -1,18 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include "core/hle/service/spl/csrng.h"
-
-namespace Service::SPL {
-
-CSRNG::CSRNG(Core::System& system_, std::shared_ptr<Module> module_)
-    : Interface(system_, std::move(module_), "csrng") {
-    static const FunctionInfo functions[] = {
-        {0, &CSRNG::GenerateRandomBytes, "GenerateRandomBytes"},
-    };
-    RegisterHandlers(functions);
-}
-
-CSRNG::~CSRNG() = default;
-
-} // namespace Service::SPL

src/core/hle/service/spl/csrng.h

@@ -1,20 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include "core/hle/service/spl/spl_module.h"
-
-namespace Core {
-class System;
-}
-
-namespace Service::SPL {
-
-class CSRNG final : public Module::Interface {
-public:
-    explicit CSRNG(Core::System& system_, std::shared_ptr<Module> module_);
-    ~CSRNG() override;
-};
-
-} // namespace Service::SPL

src/core/hle/service/spl/spl_module.cpp

@@ -13,7 +13,6 @@
 #include "core/hle/api_version.h"
 #include "core/hle/service/ipc_helpers.h"
 #include "core/hle/service/server_manager.h"
-#include "core/hle/service/spl/csrng.h"
 #include "core/hle/service/spl/spl.h"
 #include "core/hle/service/spl/spl_module.h"
 
@@ -203,6 +202,18 @@ Result Module::Interface::GetConfigImpl(u64* out_config, ConfigItem config_item)
     }
 }
 
+class CSRNG final : public Module::Interface {
+public:
+    explicit CSRNG(Core::System& system_, std::shared_ptr<Module> module_)
+        : Interface(system_, std::move(module_), "csrng") {
+        static const FunctionInfo functions[] = {
+            {0, &CSRNG::GenerateRandomBytes, "GenerateRandomBytes"},
+        };
+        RegisterHandlers(functions);
+    }
+    ~CSRNG() override = default;
+};
+
 void LoopProcess(Core::System& system) {
     auto server_manager = std::make_unique<ServerManager>(system);
     auto module = std::make_shared<Module>();