Update libcontainer

Replaced github.com/docker/libcontainer with
github.com/opencontainers/runc/libcontaier.
Also I moved AppArmor profile generation to docker.

Main idea of this update is to fix mounting cgroups inside containers.
After updating docker on CI we can even remove dind.

Signed-off-by: Alexander Morozov <lk4d4@docker.com>
Upstream-commit: c86189d554ba14aa04b6314970d3699e5ddbf4de
Component: engine

components/engine/integration-cli/requirements_unix.go

@@ -6,7 +6,7 @@ import (
 	"io/ioutil"
 	"path"
 
-	"github.com/docker/libcontainer/cgroups"
+	"github.com/opencontainers/runc/libcontainer/cgroups"
 )
 
 var (