pinctrl: imx: constify struct imx_pinctrl_soc_info

Now that imx_pinctrl_probe accepts const struct imx_pinctrl_soc_info
we can constify all declarations of struct imx_pinctrl_soc_info.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/freescale/pinctrl-imx6sx.c b/drivers/pinctrl/freescale/pinctrl-imx6sx.c
index 898b781..15ea56c 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx6sx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx6sx.c
@@ -367,7 +367,7 @@ static const struct pinctrl_pin_desc imx6sx_pinctrl_pads[] = {
 	IMX_PINCTRL_PIN(MX6SX_PAD_USB_H_STROBE),
 };
 
-static struct imx_pinctrl_soc_info imx6sx_pinctrl_info = {
+static const struct imx_pinctrl_soc_info imx6sx_pinctrl_info = {
 	.pins = imx6sx_pinctrl_pads,
 	.npins = ARRAY_SIZE(imx6sx_pinctrl_pads),
 	.gpr_compatible = "fsl,imx6sx-iomuxc-gpr",