SWDEV-301289 - Treewide macro rename

ATI_OS_WIN -> _WIN32
ATI_OS_LINUX -> __linux__

We should not rely on non-standard macros for platform detections.

Change-Id: If1d06e2e1187268df62a59609ea5496ab7eb709d

opencl/tests/ocltst/module/include/OCLTestListImp.h

@@ -24,11 +24,11 @@
 //
 // Testing module (plugin) interface forward declarations
 //
-#ifdef ATI_OS_WIN
+#ifdef _WIN32
 #define OCL_DLLEXPORT __declspec(dllexport)
 #define OCL_CALLCONV __cdecl
 #endif
-#ifdef ATI_OS_LINUX
+#ifdef __linux__
 #define OCL_DLLEXPORT
 #define OCL_CALLCONV
 #endif

opencl/tests/ocltst/module/include/OclIncludes.h

@@ -21,7 +21,7 @@
 #ifndef _OCL_INCLUDES_H
 #define _OCL_INCLUDES_H
 
-#ifdef ATI_OS_WIN
+#ifdef _WIN32
 #define POINTER_64 __ptr64
 #include <windows.h>
 #include "d3d9.h"