pinctrl: imx: Rename imx_pinctrl_ops to match drivers

Rename the structure instances to match driver names, so they
can be easily looked up e.g. in objdump and readelf outputs.
No functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/pinctrl/nxp/pinctrl-imxrt.c b/drivers/pinctrl/nxp/pinctrl-imxrt.c
index fdb3cbe..4383015 100644
--- a/drivers/pinctrl/nxp/pinctrl-imxrt.c
+++ b/drivers/pinctrl/nxp/pinctrl-imxrt.c
@@ -27,7 +27,7 @@
 	{ /* sentinel */ }
 };
 
-static const struct pinctrl_ops imx_pinctrl_ops = {
+static const struct pinctrl_ops imxrt_pinctrl_ops = {
 	.set_state = imx_pinctrl_set_state,
 };
 
@@ -38,6 +38,6 @@
 	.probe = imxrt_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
 	.priv_auto	= sizeof(struct imx_pinctrl_priv),
-	.ops = &imx_pinctrl_ops,
+	.ops = &imxrt_pinctrl_ops,
 	.flags = DM_FLAG_PRE_RELOC,
 };