docs/zh_CN: Add subsystem-apis Chinese translation

Translate subsystem-apis.rst into Chinese.

The existence of this document is crucial. Without it, other Chinese
documents included in (such as sched-design-CFS.rst) will not be
displayed correctly in the left side of the web page.

Signed-off-by: Tang Yizhou <yizhou.tang@shopee.com>
Reviewed-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20231011152520.31079-1-tangyeechou@gmail.com>

Documentation/translations/zh_CN/index.rst

@@ -52,12 +52,9 @@
 
    core-api/index
    driver-api/index
+   subsystem-apis
    内核中的锁 <locking/index>
 
-TODOList:
-
-* subsystem-apis
-
 开发工具和流程
 --------------
 

Documentation/translations/zh_CN/subsystem-apis.rst

@@ -0,0 +1,110 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+.. include:: ./disclaimer-zh_CN.rst
+
+:Original: Documentation/subsystem-apis.rst
+
+:翻译:
+
+  唐艺舟 Tang Yizhou <tangyeechou@gmail.com>
+
+==============
+内核子系统文档
+==============
+
+这些书籍从内核开发者的角度，详细介绍了特定内核子系统
+的如何工作。这里的大部分信息直接取自内核源代码，并
+根据需要添加了补充材料（或者至少是我们设法添加的 - 可
+能 *不是* 所有的材料都有需要）。
+
+核心子系统
+----------
+
+.. toctree::
+   :maxdepth: 1
+
+   core-api/index
+   driver-api/index
+   mm/index
+   power/index
+   scheduler/index
+   locking/index
+
+TODOList:
+
+* timers/index
+
+人机接口
+--------
+
+.. toctree::
+   :maxdepth: 1
+
+   sound/index
+
+TODOList:
+
+* input/index
+* hid/index
+* gpu/index
+* fb/index
+
+网络接口
+--------
+
+.. toctree::
+   :maxdepth: 1
+
+   infiniband/index
+
+TODOList:
+
+* networking/index
+* netlabel/index
+* isdn/index
+* mhi/index
+
+存储接口
+--------
+
+.. toctree::
+   :maxdepth: 1
+
+   filesystems/index
+
+TODOList:
+
+* block/index
+* cdrom/index
+* scsi/index
+* target/index
+
+**Fixme**: 这里还需要更多的分类组织工作。
+
+.. toctree::
+   :maxdepth: 1
+
+   accounting/index
+   cpu-freq/index
+   iio/index
+   virt/index
+   PCI/index
+   peci/index
+
+TODOList:
+
+* fpga/index
+* i2c/index
+* leds/index
+* pcmcia/index
+* spi/index
+* w1/index
+* watchdog/index
+* hwmon/index
+* accel/index
+* security/index
+* crypto/index
+* bpf/index
+* usb/index
+* misc-devices/index
+* wmi/index