Fix error: implicit declaration of function 'set_irq_wake'

Fix the error: implicit declaration of function 'set_irq_wake'
during building the GP2AP002 input sensor driver

Change-Id: Icabe5a00d15a53d8f571eb7f87b4c0b0f3d781f1
Signed-off-by: Rashed Abdel-Tawab <rashedabdeltawab@gmail.com>