Input: adp5589-keys - do not unconditionally configure as wakeup source

We should not be configuring the controller as a wakeup source in the
driver, but rather rely on I2C core to mark it as such by either
instantiating as I2C_CLIENT_WAKEUP or specifying "wakeup-source" device
property.

Link: https://lore.kernel.org/r/20201120073920.3214492-1-dmitry.torokhov@gmail.com


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