try plain-old code for sk_memset16/32 now that NEON is compile-time

src/opts/SkOpts_neon.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkOpts.h"
 
 #define SK_OPTS_NS sk_neon
 #include "SkBlitMask_opts.h"
 #include "SkBlitRow_opts.h"
 #include "SkBlurImageFilter_opts.h"
 #include "SkColorCubeFilter_opts.h"
 #include "SkMatrix_opts.h"
 #include "SkMorphologyImageFilter_opts.h"
 #include "SkSwizzler_opts.h"
 #include "SkTextureCompressor_opts.h"
-#include "SkUtils_opts.h"
 #include "SkXfermode_opts.h"
 
 namespace SkOpts {
     void Init_neon() {
-        memset16        = sk_neon::memset16;
-        memset32        = sk_neon::memset32;
         create_xfermode = sk_neon::create_xfermode;
 
         box_blur_xx = sk_neon::box_blur_xx;
         box_blur_xy = sk_neon::box_blur_xy;
         box_blur_yx = sk_neon::box_blur_yx;
 
         dilate_x = sk_neon::dilate_x;
         dilate_y = sk_neon::dilate_y;
          erode_x = sk_neon::erode_x;
          erode_y = sk_neon::erode_y;
@@ skipping 16 matching lines @@
         RGBA_to_bgrA          = sk_neon::RGBA_to_bgrA;
         RGB_to_RGB1           = sk_neon::RGB_to_RGB1;
         RGB_to_BGR1           = sk_neon::RGB_to_BGR1;
         gray_to_RGB1          = sk_neon::gray_to_RGB1;
         grayA_to_RGBA         = sk_neon::grayA_to_RGBA;
         grayA_to_rgbA         = sk_neon::grayA_to_rgbA;
         inverted_CMYK_to_RGB1 = sk_neon::inverted_CMYK_to_RGB1;
         inverted_CMYK_to_BGR1 = sk_neon::inverted_CMYK_to_BGR1;
     }
 }