wx/image.h is listed in wx/wx.h and part of PCH support

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40937 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/gnome/gprint.cpp

@@ -24,13 +24,13 @@
     #include "wx/dcmemory.h"
     #include "wx/icon.h"
     #include "wx/math.h"
+    #include "wx/image.h"
 #endif
 
 #include "wx/fontutil.h"
 #include "wx/gtk/private.h"
 #include "wx/module.h"
 #include "wx/dynlib.h"
-#include "wx/image.h"
 
 #include <libgnomeprint/gnome-print.h>
 #include <libgnomeprint/gnome-print-pango.h>