The driver waits for the device to boot, which can be a lengthy
process. Switch it to asynchronous probing to allow more devices
to be probed simultaneously.

Tested-by: Andreas Kemnade <andreas@kemnade.info> # Tolino Shine2HD
Link: https://lore.kernel.org/r/20240824055047.1706392-19-dmitry.torokhov@gmail.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>