usb-storage: isd200: fix initFunction error return

usb-storage: isd200: fix initFunction error return

The initFunction is called when probing a new device, its call relation
is like:

USB core: probe() -> usb_stor_probe2() -> usb_stor_acquire_resources()
-> isd200_init_info()

That is, the error return of the initFunction should tell USB core what
happened instead of using custom error code like ISD200_ERROR.

Signed-off-by: Lin Ma <linma@zju.edu.cn>
Link: https://lore.kernel.org/r/20220407022110.3757-1-linma@zju.edu.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>