ARM: S3C64XX: Fix WM8915 IRQ polarity on Cragganmore

The chip IRQ output is genuinely an IRQ output rather than /IRQ output by
default - this had been working due to an interface issue with the IRQ
controller.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/mach-s3c64xx/mach-crag6410.c

@@ -634,7 +634,7 @@ static struct wm8915_pdata wm8915_pdata __initdata = {
 	.inl_mode = WM8915_DIFFERRENTIAL_1,
 	.inr_mode = WM8915_DIFFERRENTIAL_1,
 
-	.irq_flags = IRQF_TRIGGER_FALLING,
+	.irq_flags = IRQF_TRIGGER_RISING,
 
 	.gpio_default = {
 		0x8001, /* GPIO1 == ADCLRCLK1 */