pinctrl: imx: do not announce driver initialization

It is not usual that drivers announce when they have been initialized.
use dev_dbg to announce device initialization.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pinctrl/nxp/pinctrl-imx.c b/drivers/pinctrl/nxp/pinctrl-imx.c
index 40b0616..949d0f3 100644
--- a/drivers/pinctrl/nxp/pinctrl-imx.c
+++ b/drivers/pinctrl/nxp/pinctrl-imx.c
@@ -222,7 +222,7 @@
 			return -ENOMEM;
 	}
 
-	dev_info(dev, "initialized IMX pinctrl driver\n");
+	dev_dbg(dev, "initialized IMX pinctrl driver\n");
 
 	return 0;
 }