ARM: imx: rename mxc_uart_devicex to follow a common naming scheme

Addionally remove an unneeded include.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/mach-imx/mach-mx27_3ds.c b/arch/arm/mach-imx/mach-mx27_3ds.c
index a45df59..c9af5f1 100644
--- a/arch/arm/mach-imx/mach-mx27_3ds.c
+++ b/arch/arm/mach-imx/mach-mx27_3ds.c
@@ -75,7 +75,7 @@
 {
 	mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
 		"mx27pdk");
-	mxc_register_device(&mxc_uart_device0, &uart_pdata);
+	mxc_register_device(&imx2x_uart_device0, &uart_pdata);
 	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 }