ASoC: rsnd: fixup devm_request_irq() option on ssi.c

bfc0cfe("ASoC: rsnd: don't use rsnd_mod_to_io() on rsnd_ssi_xxx()")
tidyuped devm_request_irq() option from ssi to mod, but devm_free_irq()
on rsnd_ssi_dma_remove() didn't modified. This patch fixups this issue.
Otherwise kernel will output WARNING message.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 842a35b..40e2b5d 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -555,7 +555,7 @@
 	rsnd_dma_quit(io, rsnd_mod_to_dma(mod));
 
 	/* PIO will request IRQ again */
-	devm_free_irq(dev, irq, ssi);
+	devm_free_irq(dev, irq, mod);
 
 	return 0;
 }