Update go.mod and go.sum

go.mod

@@ -33,6 +33,7 @@ require (
 	github.com/shadowsocks/go-shadowsocks2 v0.1.4
 	github.com/shadowsocks/shadowsocks-go v0.0.0-20170121203516-97a5c71f80ba
 	github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
+	github.com/templexxx/cpufeat v0.0.0-20180724012125-cef66df7f161 // indirect
 	github.com/templexxx/xor v0.0.0-20191217153810-f85b25db303b // indirect
 	github.com/tjfoc/gmsm v1.4.0 // indirect
 	github.com/xtaci/kcp-go v5.4.20+incompatible

go.sum

@@ -91,6 +91,8 @@ github.com/shadowsocks/shadowsocks-go v0.0.0-20170121203516-97a5c71f80ba h1:tJgN
 github.com/shadowsocks/shadowsocks-go v0.0.0-20170121203516-97a5c71f80ba/go.mod h1:mttDPaeLm87u74HMrP+n2tugXvIKWcwff/cqSX0lehY=
 github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 h1:TG/diQgUe0pntT/2D9tmUCz4VNwm9MfrtPr0SU2qSX8=
 github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8/go.mod h1:P5HUIBuIWKbyjl083/loAegFkfbFNx5i2qEP4CNbm7E=
+github.com/templexxx/cpufeat v0.0.0-20180724012125-cef66df7f161 h1:89CEmDvlq/F7SJEOqkIdNDGJXrQIhuIx9D2DBXjavSU=
+github.com/templexxx/cpufeat v0.0.0-20180724012125-cef66df7f161/go.mod h1:wM7WEvslTq+iOEAMDLSzhVuOt5BRZ05WirO+b09GHQU=
 github.com/templexxx/xor v0.0.0-20191217153810-f85b25db303b h1:fj5tQ8acgNUr6O8LEplsxDhUIe2573iLkJc+PqnzZTI=
 github.com/templexxx/xor v0.0.0-20191217153810-f85b25db303b/go.mod h1:5XA7W9S6mni3h5uvOC75dA3m9CCCaS83lltmc0ukdi4=
 github.com/tjfoc/gmsm v1.4.0 h1:8nbaiZG+iVdh+fXVw0DZoZZa7a4TGm3Qab+xdrdzj8s=