Support sRGB dsts in opt code

src/opts/SkOpts_sse41.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_sse41
@@ skipping 214 matching lines @@
         srcover_srgb_srgb = sk_sse41::srcover_srgb_srgb;
 
     #ifndef SK_SUPPORT_LEGACY_X86_BLITS
         blit_row_color32 = sk_sse41_new::blit_row_color32;
         blit_mask_d32_a8 = sk_sse41_new::blit_mask_d32_a8;
     #endif
         blit_row_s32a_opaque = sk_sse41::blit_row_s32a_opaque;
 
         color_xform_RGB1_srgb_to_2dot2  = sk_sse41::color_xform_RGB1_srgb_to_2dot2;
         color_xform_RGB1_2dot2_to_2dot2 = sk_sse41::color_xform_RGB1_2dot2_to_2dot2;
+        color_xform_RGB1_srgb_to_srgb   = sk_sse41::color_xform_RGB1_srgb_to_srgb;
+        color_xform_RGB1_2dot2_to_srgb  = sk_sse41::color_xform_RGB1_2dot2_to_srgb;
     }
 }