MLK-11403: I2C: imx: restore pin setting for i2c

restore pin setting for i2c in suspend/resume

Signed-off-by: Gao Pan <gaopan@freescale.com>
(cherry picked from commit 8aed73af218f25e0677b8980b3706246dd68790d)
Signed-off-by: Robin Gong <yibin.gong@nxp.com>

Conflicts:
	drivers/i2c/busses/i2c-imx.c
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>

drivers/i2c/busses/i2c-imx.c

@@ -1235,7 +1235,20 @@ static int i2c_imx_runtime_resume(struct device *dev)
 	return ret;
 }
 
+static int i2c_imx_suspend(struct device *dev)
+{
+	pinctrl_pm_select_sleep_state(dev);
+	return 0;
+}
+
+static int i2c_imx_resume(struct device *dev)
+{
+	pinctrl_pm_select_default_state(dev);
+	return 0;
+}
+
 static const struct dev_pm_ops i2c_imx_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(i2c_imx_suspend, i2c_imx_resume)
 	SET_RUNTIME_PM_OPS(i2c_imx_runtime_suspend,
 			   i2c_imx_runtime_resume, NULL)
 };