ANDROID: GKI: Update lenovo symbol list

3 function symbols added
  'void css_task_iter_end(struct css_task_iter*)'
  'struct task_struct* css_task_iter_next(struct css_task_iter*)'
  'void css_task_iter_start(struct cgroup_subsys_state*, unsigned int, struct css_task_iter*)'

Bug: 336967294
Bug: 339343464
Change-Id: I7258e06fe9f1e21d73481d47a5cc54bb95e40646
Signed-off-by: seanwang1 <seanwang1@lenovo.com>
(cherry picked from commit 444a4974)