Add global destructor of platforms

Change-Id: I7f0c9a9a13cae5cbf831e0d4e410c78c001a75d1
Signed-off-by: Mateusz Jablonski <mateusz.jablonski@intel.com>

opencl/source/os_interface/windows/platform_teardown_win.cpp

@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2020 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#include "opencl/source/platform/platform.h"
+
+namespace NEO {
+
+BOOL APIENTRY DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) {
+    if (fdwReason == DLL_PROCESS_DETACH) {
+        delete platformsImpl;
+    }
+    return TRUE;
+}
+} // namespace NEO