ASoC: omap: Add .owner to struct snd_soc_card

Missed .owner of struct snd_soc_card will prevent the module from being
removed from underneath its users.

Reported-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@ti.com>
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index a04a433..3e523a7 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -597,6 +597,7 @@
 /* Audio card driver */
 static struct snd_soc_card ams_delta_audio_card = {
 	.name = "AMS_DELTA",
+	.owner = THIS_MODULE,
 	.dai_link = &ams_delta_dai_link,
 	.num_links = 1,
 	.set_bias_level = ams_delta_set_bias_level,