ASoC: cs35l56: Use new export macro for dev_pm_ops

pm.h now has macros to create and export the dev_pm_ops struct
only if CONFIG_PM is enabled.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230914150918.14505-3-rf@opensource.cirrus.com


Signed-off-by: Mark Brown <broonie@kernel.org>