ARM: mx3/mx35_3ds: Add watchdog support

This bases on a patch by Fabio Estevam who added the device before it
was allocated dynamically.

Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

arch/arm/mach-mx3/Kconfig

@@ -178,6 +178,7 @@ config MACH_MX35_3DS
 	select MXC_DEBUG_BOARD
 	select IMX_HAVE_PLATFORM_ESDHC
 	select IMX_HAVE_PLATFORM_FSL_USB2_UDC
+	select IMX_HAVE_PLATFORM_IMX2_WDT
 	select IMX_HAVE_PLATFORM_IMX_UART
 	select IMX_HAVE_PLATFORM_MXC_EHCI
 	select IMX_HAVE_PLATFORM_MXC_NAND

arch/arm/mach-mx3/mach-mx35_3ds.c

@@ -140,6 +140,7 @@ static void __init mxc_board_init(void)
 	mxc_iomux_v3_setup_multiple_pads(mx35pdk_pads, ARRAY_SIZE(mx35pdk_pads));
 
 	imx35_add_fec(NULL);
+	imx35_add_imx2_wdt(NULL);
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 
 	imx35_add_imx_uart0(&uart_pdata);