mfd: lpc_sch: Enable WDT for Intel Quark X1000

Quark X1000 uses ie6xx_wdt driver for WDT. To enable WDT, we declare WDT IO
resource size for Quark X1000.

Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index 5c38df3..a56e4ba 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -75,6 +75,7 @@
 	[LPC_QUARK_X1000] = {
 		.io_size_gpio = GPIO_IO_SIZE,
 		.irq_gpio = GPIO_IRQ_QUARK_X1000,
+		.io_size_wdt = WDT_IO_SIZE,
 	},
 };