Docs/zh_CN: Update the translation of pci-iov-howto to 5.19-rc8

Update to commit 4f23bd5d ("PCI/doc: Convert
examples to generic power management")

Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Reviewed-by: Alex Shi <alexs@kernel.org>
Link: https://lore.kernel.org/r/24c53aabc9d942f6fe38b8d3a843329edca3d18c.1658983157.git.siyanteng@loongson.cn


Signed-off-by: Jonathan Corbet <corbet@lwn.net>