docs/zh_CN: update the translation of mm/active_mm.rst

docs/zh_CN: update the translation of mm/active_mm.rst

Update to commit 88e3009b5283 ("lazy tlb: allow lazy tlb
mm refcounting to be configurable")

scripts/checktransupdate.py reports:

Documentation/translations/zh_CN/mm/active_mm.rst
commit 88e3009b5283 ("lazy tlb: allow lazy tlb mm refcounting
to be configurable")
commit ee86588960e2 ("docs/mm: remove useless markup")
2 commits needs resolving in total

Signed-off-by: Dongliang Mu <dzm91@hust.edu.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <985f62236dad7c9446272d94bffc20eb8f45ae4b.1729327831.git.dzm91@hust.edu.cn>