glamor: Fixed one conflict data type(XID) bug.

We should include the dix-config.h for all the glamor files. Otherwise
the XID type maybe inconsisitent in different files in 64bit machine.
The root cause is this macro "#define _XSERVER64 1" should be included
in all files refer to the data type "XID" which is originally defined
in X.h. If _XSERVER64 is defined as 1, then XID is defined as CARD32
which is a 32bit integer. If _XSERVER64 is not defined as 1 then XID
is "unsigned long". In a 32bit machine, "unsigned long" should be
identical to CARD32. But in a 64bit machine, they are different.

glamor/glamor_priv.h

@@ -24,10 +24,14 @@
  *    Eric Anholt <eric@anholt.net>
  *
  */
-
 #ifndef GLAMOR_PRIV_H
 #define GLAMOR_PRIV_H
 
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+
 #include "glamor.h"
 #include <GL/glew.h>