As the codec API has evolved the documentation has not kept up and still
uses old fields that have been removed. Update the examples to
represent the current API.
Signed-off-by: John Keeping <john@metanate.com>
Link: https://lore.kernel.org/r/20211024151731.360638-1-john@metanate.com
Signed-off-by: Mark Brown <broonie@kernel.org>