docs/zh_CN: Update zh_CN/process/submitting-patches.rst to 5.19

* update to commit 9db370de ("docs: process: remove outdated
  submitting-drivers.rst")
* clean and reconstruct the whole translation
Signed-off-by: Wu XiangCheng <bobwxc@email.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/717baee07920d3cecf09197a10c973dd46089fcb.1659406843.git.bobwxc@email.cnSigned-off-by: Jonathan Corbet <corbet@lwn.net>