ANDROID: GKI: Update symbol list for sunxi

4 function symbol(s) added
  'int v4l2_enum_dv_timings_cap(struct v4l2_enum_dv_timings *, const struct v4l2_dv_timings_cap *, v4l2_check_dv_timings_fnc *, void *)'
  'int v4l2_src_change_event_subdev_subscribe(struct v4l2_subdev *, struct v4l2_fh *, struct v4l2_event_subscription *)'
  'void v4l2_subdev_notify_event(struct v4l2_subdev *, const struct v4l2_event *)'
  'bool v4l2_valid_dv_timings(const struct v4l2_dv_timings *, const struct v4l2_dv_timings_cap *, v4l2_check_dv_timings_fnc *, void *)'

Bug: 299374771
Bug: 300071841
Signed-off-by: Aran Dalton <arda@allwinnertech.com>
Change-Id: I0c2acfdd906ff67bf05cfc2cbacb902338e2cacb