LXC: controller: change the owner of /dev to the root user of container

container will create /dev/pts directory in /dev.
the owner of /dev should be the root user of container.
Signed-off-by: NGao feng <gaofeng@cn.fujitsu.com>

src/lxc/lxc_controller.c

@@ -1257,6 +1257,9 @@ static int virLXCControllerSetupDev(virLXCControllerPtr ctrl)
         goto cleanup;
     }
 
+    if (virLXCControllerChown(ctrl, dev) < 0)
+        goto cleanup;
+
     ret = 0;
 cleanup:
     VIR_FREE(opts);