rsi: fix an error code in rsi_probe()

Return -ENODEV instead of success for unsupported devices.

Fixes: 54fdb318 ("rsi: add new device model for 9116")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210816183947.GA2119@kili