linux-phytec-fsl

ASoC: simple-card-utils: add asoc_simple_card_clean_reference()

simple-card needs to decrease the reference count of the device nodes.
This patch makes this method simple style standard.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>