omap: 4430SDP: Register the card detect GPIO properly

Without this the HSMMC driver takes GPIO 0 to be the card detect gpio
and requests/configures it. This will give rise to issues when another
driver needs to use GPIO 0. On 4430SDP, the card detection is through
TWL 6030.

Signed-off-by: Silesh C V <silesh@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-4430sdp.c

@@ -323,6 +323,7 @@ static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 1,
 		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 	},
 	{}	/* Terminator */