ARM: dts: omap3-lilly-a83x: Don't use IRQ level flag for a GPIO

The card detect GPIO is using IRQ_TYPE_LEVEL_LOW in the GPIO flag cells
but this defined constant is meant to be used for a IRQ and not a GPIO.
So instead use GPIO_ACTIVE_LOW that seems to be the original intention.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>