Compile fix

--HG--
extra : convert_revision : 4a66d04404beee9656e3e33089afcec10d7ee5ff

src/arch/x86/utility.hh

@@ -61,6 +61,7 @@
 #include "arch/x86/types.hh"
 #include "base/hashmap.hh"
 #include "base/misc.hh"
+#include "cpu/thread_context.hh"
 #include "sim/host.hh"
 
 class ThreadContext;