ASoC: Push platform registration down into the card

As part of the deprecation of snd_soc_device push the registration of
the platform down into the card structure.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/omap/overo.c b/sound/soc/omap/overo.c
index eea0c37..a72dc4e 100644
--- a/sound/soc/omap/overo.c
+++ b/sound/soc/omap/overo.c
@@ -90,6 +90,7 @@
 /* Audio machine driver */
 static struct snd_soc_card snd_soc_card_overo = {
 	.name = "overo",
+	.platform = &omap_soc_platform,
 	.dai_link = &overo_dai,
 	.num_links = 1,
 };
@@ -97,7 +98,6 @@
 /* Audio subsystem */
 static struct snd_soc_device overo_snd_devdata = {
 	.card = &snd_soc_card_overo,
-	.platform = &omap_soc_platform,
 	.codec_dev = &soc_codec_dev_twl4030,
 };