Input: edt-ft5x06 - prefer asynchronous probe

Probing the device takes a while, because we sleep for 300 ms after a
reset; allow asynchronous probing so this can happen in the background
while other devices are being probed.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20200227112819.16754-5-m.felsch@pengutronix.de


Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>