mx31moboard: SPI corrections

Adds requirement for ADC on mc13783 and moves the spidev declaration
to marxbot file.

Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c
index b167f13..2c9ea5f 100644
--- a/arch/arm/mach-mx3/mx31moboard.c
+++ b/arch/arm/mach-mx3/mx31moboard.c
@@ -213,6 +213,7 @@
 	.regulators = moboard_regulators,
 	.num_regulators = ARRAY_SIZE(moboard_regulators),
 	.flags = MC13783_USE_REGULATOR | MC13783_USE_RTC,
+		MC13783_USE_ADC,
 };
 
 static struct spi_board_info moboard_spi_board_info[] __initdata = {
@@ -225,12 +226,6 @@
 		.platform_data = &moboard_pmic,
 		.mode = SPI_CS_HIGH,
 	},
-	{
-		.modalias = "spidev",
-		.max_speed_hz = 300000,
-		.bus_num = 1,
-		.chip_select = 1, /* according spi1_cs[] ! */
-	},
 };
 
 static int moboard_spi2_cs[] = {