input: Add onkey support for 88PM80X PMIC

Add onkey support for MARVELL 88PM80X PMIC.

Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
3 files changed