Common: Move GetDeviceProperty() into its own header

Otherwise we include Windows headers in the entire codebase through CommonFuncs.h

Source/Core/Common/WindowsDevice.h

@@ -0,0 +1,29 @@
+// Copyright 2025 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#ifdef _WIN32
+
+#include <string>
+
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <Windows.h>
+
+#include <SetupAPI.h>
+#include <cfgmgr32.h>
+#include <devpropdef.h>
+
+namespace Common
+{
+// Obtains a device property and returns it as a wide string.
+std::wstring GetDeviceProperty(const HANDLE& device_info, const PSP_DEVINFO_DATA device_data,
+                               const DEVPROPKEY* requested_property);
+}  // namespace Common
+
+#endif