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

source/libvpx/vp8/common/x86/idctllm_mmx.asm

 ;
 ;  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.
 ;
 
 
 %include "vpx_ports/x86_abi_support.asm"
 
 ; /****************************************************************************
 ; * Notes:
 ; *
-; * This implementation makes use of 16 bit fixed point verio of two multiply
+; * This implementation makes use of 16 bit fixed point version of two multiply
 ; * constants:
 ; *        1.   sqrt(2) * cos (pi/8)
-; *         2.   sqrt(2) * sin (pi/8)
-; * Becuase the first constant is bigger than 1, to maintain the same 16 bit
-; * fixed point prrcision as the second one, we use a trick of
+; *        2.   sqrt(2) * sin (pi/8)
+; * Because the first constant is bigger than 1, to maintain the same 16 bit
+; * fixed point precision as the second one, we use a trick of
 ; *        x * a = x + x*(a-1)
 ; * so
 ; *        x * sqrt(2) * cos (pi/8) = x + x * (sqrt(2) *cos(pi/8)-1).
 ; *
-; * For     the second constant, becuase of the 16bit version is 35468, which
-; * is bigger than 32768, in signed 16 bit multiply, it become a negative
+; * For the second constant, because of the 16bit version is 35468, which
+; * is bigger than 32768, in signed 16 bit multiply, it becomes a negative
 ; * number.
 ; *        (x * (unsigned)35468 >> 16) = x * (signed)35468 >> 16 + x
 ; *
 ; **************************************************************************/
 
 
 ;void short_idct4x4llm_mmx(short *input, short *output, int pitch)
 global sym(vp8_short_idct4x4llm_mmx)
 sym(vp8_short_idct4x4llm_mmx):
     push        rbp
@@ skipping 244 matching lines @@
 SECTION_RODATA
 align 16
 x_s1sqr2:
     times 4 dw 0x8A8C
 align 16
 x_c1sqr2less1:
     times 4 dw 0x4E7B
 align 16
 fours:
     times 4 dw 0x0004