mrf24j40: add default channel setting

Per default mrf24j40 has the channel 11 after reset. This patch adds the
right phy default value for the channel setting.

Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

drivers/net/ieee802154/mrf24j40.c

@@ -720,6 +720,11 @@ err_ret:
 	return ret;
 }
 
+static void  mrf24j40_phy_setup(struct mrf24j40 *devrec)
+{
+	devrec->hw->phy->current_channel = 11;
+}
+
 static int mrf24j40_probe(struct spi_device *spi)
 {
 	int ret = -ENOMEM;
@@ -759,6 +764,8 @@ static int mrf24j40_probe(struct spi_device *spi)
 	if (ret)
 		goto err_register_device;
 
+	mrf24j40_phy_setup(devrec);
+
 	ret = devm_request_threaded_irq(&spi->dev,
 					spi->irq,
 					NULL,