xgl:  Remove XGL_* typedef wrappers

Part of moving to xgl.h rev#38, svn rev 29293-29302
diff --git a/icd/intel/gpu.h b/icd/intel/gpu.h
index 70f1ee1..d74b0c0 100644
--- a/icd/intel/gpu.h
+++ b/icd/intel/gpu.h
@@ -67,7 +67,7 @@
     int gt;
 
     XGL_GPU_SIZE max_batch_buffer_size;
-    XGL_UINT batch_buffer_reloc_count;
+    uint32_t batch_buffer_reloc_count;
 
     /*
      * The enabled hardware features could be limited by the kernel.  These