rename yuv matrix constants to be more clear about what they are

source/row_neon.cc

 /*
  *  Copyright 2011 The LibYuv 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.
  */
 
@@ skipping 410 matching lines @@
     READYUV400
     YUVTORGB
     "subs       %2, %2, #8                     \n"
     "vmov.u8    d23, #255                      \n"
     MEMACCESS(1)
     "vst4.8     {d20, d21, d22, d23}, [%1]!    \n"
     "bgt        1b                             \n"
     : "+r"(src_y),     // %0
       "+r"(dst_argb),  // %1
       "+r"(width)      // %2
-    : [kUVToRB]"r"(&kYuvIConstants.kUVToRB),
-      [kUVToG]"r"(&kYuvIConstants.kUVToG),
-      [kUVBiasBGR]"r"(&kYuvIConstants.kUVBiasBGR),
-      [kYToRgb]"r"(&kYuvIConstants.kYToRgb)
+    : [kUVToRB]"r"(&kYuvI601Constants.kUVToRB),
+      [kUVToG]"r"(&kYuvI601Constants.kUVToG),
+      [kUVBiasBGR]"r"(&kYuvI601Constants.kUVBiasBGR),
+      [kYToRgb]"r"(&kYuvI601Constants.kYToRgb)
     : "cc", "memory", "q0", "q1", "q2", "q3", "q4",
       "q8", "q9", "q10", "q11", "q12", "q13", "q14", "q15"
   );
 }
 
 void J400ToARGBRow_NEON(const uint8* src_y,
                         uint8* dst_argb,
                         int width) {
   asm volatile (
     "vmov.u8    d23, #255                      \n"
@@ skipping 2432 matching lines @@
     "r"(6)             // %5
   : "cc", "memory", "q0", "q1"  // Clobber List
   );
 }
 #endif  // defined(__ARM_NEON__) && !defined(__aarch64__)
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif