Merge #786 into sdk602patch0626 from refs/changes/786/head

Merge #786 into sdk602patch0626 from refs/changes/786/head

Code review from 彭磊

* refs/changes/786/head: (3 commits squashed)

  - 修改蓝牙广播模式,降低广播功耗

  - Merge branch 'sdk602patch0626' of https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230 into sdk602patch0626

  - 修改蓝牙广播模式,降低广播功耗(补)

Signed-off-by: aliyun6865282430 <1624952103@qq.com>
Reviewed-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
Merged-by: snickersun@163.com <accounts_62b90f7fcf51ade33b6f628e@mail.teambition.com>
link: https://codeup.aliyun.com/64191456b9581d62e8f81ac0/FD230/change/786