Fix major error in lxt2 info allocation.

The zero element was already returned so it can not be reused a
second time. This was crashing when things went off the end of
the list since the do all functor was off by one.

vpi/sys_lxt2.c

@@ -76,8 +76,8 @@ struct vcd_info*new_vcd_info(void)
 	    return info_chunk_list->data + 0;
       }
 
-      struct vcd_info*ptr = cur_chunk->data + cur_chunk->chunk_fill;
       cur_chunk->chunk_fill += 1;
+      struct vcd_info*ptr = cur_chunk->data + cur_chunk->chunk_fill;
       return ptr;
 }