docs/zh_CN add PCI index.rst translation

Translate ../PCI/index.rst into Chinese

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/668466823fd2b66768553f12199bce74e8450f78.1635248253.git.siyanteng@loongson.cn
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
1 file changed