Add audio jack detection node. PMIC accessory detect driver will
create an input device that will send key events on jack
insertion/removal or accessory device key presses.

Co-developed-by: Andrew Perepech <andrew.perepech@mediatek.com>
Signed-off-by: Andrew Perepech <andrew.perepech@mediatek.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>