libvpx: Pull from upstream

source/libvpx/vpx_dsp/arm/idct4x4_add_neon.asm

 ;
 ;  Copyright (c) 2013 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.
 ;
 
-    EXPORT  |vp9_idct4x4_16_add_neon|
+    EXPORT  |vpx_idct4x4_16_add_neon|
     ARM
     REQUIRE8
     PRESERVE8
 
     AREA ||.text||, CODE, READONLY, ALIGN=2
 
     AREA     Block, CODE, READONLY ; name this block of code
-;void vp9_idct4x4_16_add_neon(int16_t *input, uint8_t *dest, int dest_stride)
+;void vpx_idct4x4_16_add_neon(int16_t *input, uint8_t *dest, int dest_stride)
 ;
 ; r0  int16_t input
 ; r1  uint8_t *dest
 ; r2  int dest_stride)
 
-|vp9_idct4x4_16_add_neon| PROC
+|vpx_idct4x4_16_add_neon| PROC
 
     ; The 2D transform is done with two passes which are actually pretty
     ; similar. We first transform the rows. This is done by transposing
     ; the inputs, doing an SIMD column transform (the columns are the
     ; transposed rows) and then transpose the results (so that it goes back
     ; in normal/row positions). Then, we transform the columns by doing
     ; another SIMD column transform.
     ; So, two passes of a transpose followed by a column transform.
 
     ; load the inputs into q8-q9, d16-d19
@@ skipping 142 matching lines @@
     vqmovun.s16 d27, q9
 
     ; do the stores in reverse order with negative post-increment, by changing
     ; the sign of the stride
     rsb r2, r2, #0
     vst1.32 {d27[0]}, [r1], r2
     vst1.32 {d27[1]}, [r1], r2
     vst1.32 {d26[1]}, [r1], r2
     vst1.32 {d26[0]}, [r1]  ; no post-increment
     bx              lr
-    ENDP  ; |vp9_idct4x4_16_add_neon|
+    ENDP  ; |vpx_idct4x4_16_add_neon|
 
     END