Implementing irq_set_wake() so that device should able
to wakeup the system through different interrupt provided
by this device like gpios, onkey, rtc etc.
Signed-off-by: NLaxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: NMark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: NSamuel Ortiz <sameo@linux.intel.com>