ASoC: cs35l56: Increase pm_runtime autosuspend delay

ASoC: cs35l56: Increase pm_runtime autosuspend delay

Increase the pm_runtime autosuspend delay to be longer than the
timeout of the firmware's own inactivity timer.

There is no point attempting to pm_runtime suspend any sooner than
the firmware idle timeout because it would only mean the driver has
to poll waiting for the firmware idle.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20260609122946.288103-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>