Update libvpx snapshot to v0.9.7-p1 (Cayuga).

source/libvpx/vpx_mem/include/nds/vpx_mem_nds.h

-/*
- *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-
-#ifndef __VPX_MEM_NDS_H__
-#define __VPX_MEM_NDS_H__
-
-#if defined(__cplusplus)
-extern "C" {
-#endif
-
-#include <nitro.h>
-#include <nitro/os.h>
-
-    void *vpx_mem_nds_alloc(osarena_id id, osheap_handle handle, size_t size, size_t align);
-    void vpx_mem_nds_free(osarena_id id, osheap_handle handle, void *mem);
-    int vpx_nds_alloc_heap(osarena_id id, u32 size);
-
-#if defined(__cplusplus)
-}
-#endif
-
-#endif /*__VPX_MEM_NDS_H__*/