Keep pause state when restoring container's status

Do not change pause state when restoring container's
status, or status in docker will be different with
status in runc.

Signed-off-by: Fengtu Wang <wangfengtu@huawei.com>
(cherry picked from commit 977c4046fd2147d7c04f4b513a94138013ca0dd6)
Signed-off-by: Andrew Hsu <andrewhsu@docker.com>

components/engine/container/state.go

@@ -278,7 +278,9 @@ func (s *State) SetRunning(pid int, initial bool) {
 	s.ErrorMsg = ""
 	s.Running = true
 	s.Restarting = false
-	s.Paused = false
+	if initial {
+		s.Paused = false
+	}
 	s.ExitCodeValue = 0
 	s.Pid = pid
 	if initial {