[release-v1.7] main: Update to use latest sys module.

This updates the main module to use the latest golang.org/x/sys module
which allows building on OpenBSD riscv64.

- golang.org/x/[email protected]

go.mod

@@ -1,6 +1,6 @@
 module github.com/decred/dcrd
 
-go 1.16
+go 1.19
 
 require (
 	github.com/davecgh/go-spew v1.1.1
@@ -38,5 +38,13 @@ require (
 	github.com/jrick/logrotate v1.0.0
 	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
 	golang.org/x/crypto v0.0.0-20200820211705-5c72a883971a
-	golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e
+	golang.org/x/sys v0.5.0
+)
+
+require (
+	github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412 // indirect
+	github.com/dchest/siphash v1.2.2 // indirect
+	github.com/decred/dcrd/crypto/blake256 v1.0.0 // indirect
+	github.com/decred/dcrd/dcrec/edwards/v2 v2.0.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
 )

go.sum

@@ -48,7 +48,6 @@ github.com/decred/dcrd/gcs/v3 v3.0.0 h1:MjWevhoAzKENUgpaJAbZkJlKDN4HIz2nR/i3laZA
 github.com/decred/dcrd/gcs/v3 v3.0.0/go.mod h1:/OVb/rYrAz4TCtxcPneYfBs0+YI1pGIp8RA6RUNqOp4=
 github.com/decred/dcrd/hdkeychain/v3 v3.1.0 h1:NlUjzPMzexbk1PyJu6vrQaiilep5WsEPB0KdhLYrEcE=
 github.com/decred/dcrd/hdkeychain/v3 v3.1.0/go.mod h1:rDCdqwGkcTfEyRheG1g8Wc38appT2C9+D1XTlLy21lo=
-github.com/decred/dcrd/lru v1.1.0/go.mod h1:mxKOwFd7lFjN2GZYsiz/ecgqR6kkYAl+0pz0tEMk218=
 github.com/decred/dcrd/lru v1.1.1 h1:kWFDaW0OWx6AD6Ki342c+JPmHbiVdE6rK81pT3fuo/Y=
 github.com/decred/dcrd/lru v1.1.1/go.mod h1:mxKOwFd7lFjN2GZYsiz/ecgqR6kkYAl+0pz0tEMk218=
 github.com/decred/dcrd/math/uint256 v1.0.0 h1:RGXQ8WzTMZ1eVeXy5uE67DPMB5Aa8N7qjgBNGlHdIQ0=
@@ -124,8 +123,8 @@ golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e h1:fLOSk5Q00efkSvAm+4xcoXD+RRmLmmulPn5I3Y9F2EM=
-golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=