crypto: atmel - Drop unused id parameter from atmel_i2c_probe()

id is unused in atmel_i2c_probe() and the callers have extra efforts to
determine the right parameter. So drop the parameter simplifying both
atmel_i2c_probe() and its callers.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>