Optimize color xforms with 2.2 gammas for SSE2

src/opts/SkOpts_ssse3.cpp

Index: src/opts/SkOpts_ssse3.cpp
diff --git a/src/opts/SkOpts_ssse3.cpp b/src/opts/SkOpts_ssse3.cpp
index 94a26a1ca24d1d92eff3ade408c2bbb507cbd7ab..5b12c2ae42a20d8ecb9504d622d030ee8fd15bd3 100644
--- a/src/opts/SkOpts_ssse3.cpp
+++ b/src/opts/SkOpts_ssse3.cpp
@@ -9,6 +9,7 @@
 #define SK_OPTS_NS sk_ssse3
 #include "SkBlitMask_opts.h"
 #include "SkColorCubeFilter_opts.h"
+#include "SkColorXform_opts.h"
 #include "SkSwizzler_opts.h"
 #include "SkXfermode_opts.h"
 
@@ -28,5 +29,7 @@ namespace SkOpts {
         grayA_to_rgbA         = sk_ssse3::grayA_to_rgbA;
         inverted_CMYK_to_RGB1 = sk_ssse3::inverted_CMYK_to_RGB1;
         inverted_CMYK_to_BGR1 = sk_ssse3::inverted_CMYK_to_BGR1;
+
+        color_xform_2Dot2_RGBA_to_8888 = sk_ssse3::color_xform_2Dot2_RGBA_to_8888;
     }
 }