docs/zh_CN: add translation of dev-tools/kmsan.rst

Add translation of kmsan.rst and remove it from TODO list.
update to commit 3f53d1b ("docs/dev-tools: fix a typo")

Signed-off-by: Haoyang Liu <[email protected]>
Reviewed-by: Alex Shi <[email protected]>
Reviewed-by: Yanteng Si <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

Author: tttturtle-russ

Documentation/translations/zh_CN/dev-tools/index.rst

@@ -22,6 +22,7 @@ Documentation/translations/zh_CN/dev-tools/testing-overview.rst
    sparse
    kcov
    kcsan
+   kmsan
    gcov
    kasan
    ubsan
@@ -32,7 +33,6 @@ Todolist:
 
  - checkpatch
  - coccinelle
- - kmsan
  - kfence
  - kgdb
  - kselftest