Move Q_OF_ELF/Q_OF_MACH_O macros to qsystemdetection.h

Task-number: QTBUG-99313
Change-Id: I373fad6f8339a0bad1ebc5d81386b18794bf32cc
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>

src/corelib/global/qglobal.h

@@ -47,13 +47,6 @@ inline void qt_noop(void) {}
 #include <QtCore/qassert.h>
 #include <QtCore/qtypes.h>
 
-#if defined (__ELF__)
-#  define Q_OF_ELF
-#endif
-#if defined (__MACH__) && defined (__APPLE__)
-#  define Q_OF_MACH_O
-#endif
-
 /*
    Avoid "unused parameter" warnings
 */

src/corelib/global/qsystemdetection.h

@@ -253,4 +253,11 @@
 #endif
 #endif
 
+#if defined (__ELF__)
+#  define Q_OF_ELF
+#endif
+#if defined (__MACH__) && defined (__APPLE__)
+#  define Q_OF_MACH_O
+#endif
+
 #endif // QSYSTEMDETECTION_H