Since of_device_id.data is declared as a pointer to const data a few
more consts can be added in this driver.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>