Allow the driver to work with device tree support.
Based on initial patch submission from Peter Fox.
Tested on a imx7d-sdb board connected to a SHT15 board via Mikro Bus.
Signed-off-by: Marco Franchi <marco.franchi@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
