tnl: Clean up header file inclusion in t_vp_build.h.

src/mesa/tnl/t_vp_build.c

@@ -32,7 +32,7 @@
 
 #include "main/glheader.h"
 #include "main/ffvertex_prog.h"
-#include "main/dd.h"
+#include "main/mtypes.h"
 #include "t_vp_build.h"
 
 

src/mesa/tnl/t_vp_build.h

@@ -27,7 +27,7 @@
 #ifndef T_VP_BUILD_H
 #define T_VP_BUILD_H
 
-#include "main/mtypes.h"
+struct gl_context;
 
 #define TNL_FIXED_FUNCTION_STATE_FLAGS (_NEW_PROGRAM |		\
 					_NEW_LIGHT |		\