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-pcm038.c b/arch/arm/mach-imx/mach-pcm038.c
index 36c8943..b6a15ba 100644
--- a/arch/arm/mach-imx/mach-pcm038.c
+++ b/arch/arm/mach-imx/mach-pcm038.c
@@ -305,9 +305,9 @@
 
 	pcm038_init_sram();
 
-	mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
-	mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
-	mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
+	mxc_register_device(&imx2x_uart_device0, &uart_pdata[0]);
+	mxc_register_device(&imx2x_uart_device1, &uart_pdata[1]);
+	mxc_register_device(&imx2x_uart_device2, &uart_pdata[2]);
 
 	mxc_gpio_mode(PE16_AF_OWIRE);
 	mxc_register_device(&imx27_nand_device, &pcm038_nand_board_info);