spi/imx: Add i.MX53 support

1. Change the Kconfig to include i.MX53
2. add devtype entry for i.MX53

Signed-off-by: Yong Shen <yong.shen@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

drivers/spi/spi_imx.c

@@ -742,6 +742,12 @@ static struct platform_device_id spi_imx_devtype[] = {
 	}, {
 		.name = "imx51-ecspi",
 		.driver_data = SPI_IMX_VER_2_3,
+	}, {
+		.name = "imx53-cspi",
+		.driver_data = SPI_IMX_VER_0_7,
+	}, {
+		.name = "imx53-ecspi",
+		.driver_data = SPI_IMX_VER_2_3,
 	}, {
 		/* sentinel */
 	}