i965_drv_video/render: set surface base address

It is easy to fill the binding table without relocation and make sure
all offsets in binding table only uses bits[15:0]
Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>

i965_drv_video/i965_render.h

@@ -28,8 +28,8 @@
 #ifndef _I965_RENDER_H_
 #define _I965_RENDER_H_
 
-#define MAX_RENDER_SURFACES     16
 #define MAX_SAMPLERS            16
+#define MAX_RENDER_SURFACES     (MAX_SAMPLERS + 1)
 
 #include "i965_post_processing.h"
 
@@ -50,9 +50,8 @@ struct i965_render_state
     struct {
         int sampler_count;
         dri_bo *sampler;
-        dri_bo *surface[MAX_RENDER_SURFACES];
-        dri_bo *binding_table;
         dri_bo *state;
+        dri_bo *surface_state_binding_table_bo;
     } wm;
 
     struct {