Merge pull request #9087 from Morph1984/once

general: Add missing pragma once

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

@@ -1,6 +1,8 @@
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#pragma once
+
 #include "core/hle/result.h"
 
 namespace Service::VI {