net:fec: Add fsl,imx6sx-fec compatible strings

Add compatible string "fsl,imx6sx-fec" for i.MX6SX.
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/fec_main.c

@@ -157,6 +157,7 @@ enum imx_fec_type {
 	IMX28_FEC,
 	IMX6Q_FEC,
 	MVF600_FEC,
+	IMX6SX_FEC,
 };
 
 static const struct of_device_id fec_dt_ids[] = {
@@ -165,6 +166,7 @@ static const struct of_device_id fec_dt_ids[] = {
 	{ .compatible = "fsl,imx28-fec", .data = &fec_devtype[IMX28_FEC], },
 	{ .compatible = "fsl,imx6q-fec", .data = &fec_devtype[IMX6Q_FEC], },
 	{ .compatible = "fsl,mvf600-fec", .data = &fec_devtype[MVF600_FEC], },
+	{ .compatible = "fsl,imx6sx-fec", .data = &fec_devtype[IMX6SX_FEC], },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fec_dt_ids);