docs/zh_CN: Add locking/index Chinese translation

Translate locking/index.rst into Chinese.
Signed-off-by: Tang Yizhou <tangyizhou@huawei.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/translations/zh_CN/index.rst

@@ -108,6 +108,7 @@ TODOList:
    :maxdepth: 2
 
    core-api/index
+   locking/index
    accounting/index
    cpu-freq/index
    iio/index
@@ -123,7 +124,6 @@ TODOList:
 TODOList:
 
 * driver-api/index
-* locking/index
 * block/index
 * cdrom/index
 * ide/index

Documentation/translations/zh_CN/locking/index.rst

+.. SPDX-License-Identifier: GPL-2.0
+.. include:: ../disclaimer-zh_CN.rst
+
+:Original: Documentation/locking/index.rst
+
+:翻译:
+
+  唐艺舟 Tang Yizhou <tangyeechou@gmail.com>
+
+==
+锁
+==
+
+.. toctree::
+    :maxdepth: 1
+
+TODOList:
+
+    * locktypes
+    * lockdep-design
+    * lockstat
+    * locktorture
+    * mutex-design
+    * rt-mutex-design
+    * rt-mutex
+    * seqlock
+    * spinlocks
+    * ww-mutex-design
+    * preempt-locking
+    * pi-futex
+    * futex-requeue-pi
+    * hwspinlock
+    * percpu-rw-semaphore
+    * robust-futexes
+    * robust-futex-ABI
+
+.. only::  subproject and html
+
+   Indices
+   =======
+
+   * :ref:`genindex`