xgl:  Add framebuffer-no-attachment support

Add default values if no attachments are present, correctly handle
override values when attachments are present.  Bug# 13212, header
revision #36.
diff --git a/icd/intel/view.h b/icd/intel/view.h
index 8956123..e36cb43 100644
--- a/icd/intel/view.h
+++ b/icd/intel/view.h
@@ -71,6 +71,8 @@
 
     struct intel_img *img;
 
+    XGL_UINT array_size;
+
     /* SURFACE_STATE */
     uint32_t cmd[8];
     XGL_UINT cmd_len;
@@ -81,6 +83,8 @@
 
     struct intel_img *img;
 
+    XGL_UINT array_size;
+
     /*
      * 3DSTATE_DEPTH_BUFFER
      * 3DSTATE_STENCIL_BUFFER