Support sRGB dsts in opt code

src/opts/SkOpts_sse41.cpp

Index: src/opts/SkOpts_sse41.cpp
diff --git a/src/opts/SkOpts_sse41.cpp b/src/opts/SkOpts_sse41.cpp
index 686d32e063d65f3fc76227614f160abc765b8d53..7efe267564849d8a69ce2e5da682c70254fe078f 100644
--- a/src/opts/SkOpts_sse41.cpp
+++ b/src/opts/SkOpts_sse41.cpp
@@ -232,5 +232,7 @@ namespace SkOpts {
 
         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;
     }
 }