Replace usage of pkg/nat with go-connections/nat.

Signed-off-by: David Calavera <david.calavera@gmail.com>

types/types.go

@@ -6,9 +6,9 @@ import (
 
 	"github.com/docker/docker/api/types/network"
 	"github.com/docker/docker/api/types/registry"
-	"github.com/docker/docker/pkg/nat"
 	"github.com/docker/docker/pkg/version"
 	"github.com/docker/docker/runconfig"
+	"github.com/docker/go-connections/nat"
 )
 
 // ContainerCreateResponse contains the information returned to a client on the

types/versions/v1p19/types.go

@@ -4,8 +4,8 @@ package v1p19
 import (
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/versions/v1p20"
-	"github.com/docker/docker/pkg/nat"
 	"github.com/docker/docker/runconfig"
+	"github.com/docker/go-connections/nat"
 )
 
 // ContainerJSON is a backcompatibility struct for APIs prior to 1.20.

types/versions/v1p20/types.go

@@ -3,8 +3,8 @@ package v1p20
 
 import (
 	"github.com/docker/docker/api/types"
-	"github.com/docker/docker/pkg/nat"
 	"github.com/docker/docker/runconfig"
+	"github.com/docker/go-connections/nat"
 )
 
 // ContainerJSON is a backcompatibility struct for the API 1.20