[ARM] pxa/cm-x300: enable the IRQ_WAKEUP0 as wakeup source.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

arch/arm/mach-pxa/cm-x300.c

@@ -689,6 +689,7 @@ static void __init cm_x300_init_da9030(void)
 {
 	pxa3xx_set_i2c_power_info(&cm_x300_pwr_i2c_info);
 	i2c_register_board_info(1, &cm_x300_pmic_info, 1);
+	set_irq_wake(IRQ_WAKEUP0, 1);
 }
 
 static void __init cm_x300_init_wi2wi(void)