ASoC: pxa: Convert e750_wm9705 to use snd_soc_register_card()

Use snd_soc_register_card() instead of creating a "soc-audio" platform device.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index d157ca9..3abfdb9 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -724,12 +724,18 @@
 	.resource      = eseries_tmio_resources,
 };
 
+static struct platform_device e750_audio_device = {
+	.name		= "e750-audio",
+	.id		= -1,
+};
+
 /* ------------------------------------------------------------- */
 
 static struct platform_device *e750_devices[] __initdata = {
 	&e750_fb_device,
 	&e750_tc6393xb_device,
 	&e7xx_gpio_vbus,
+	&e750_audio_device,
 };
 
 static void __init e750_init(void)