Implement .irq_set_wake() to get who is wakeup source and setup on suspend/reumse. Enable
mt6393_irq as wake up source properly to pinctrl by enable_irq_wake()/enable_irq_wake().
Signed-off-by: NHenry Chen <henryc.chen@mediatek.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>