microblaze: clean uart16550 and uartlite handling

Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/board/xilinx/ml401/xparameters.h b/board/xilinx/ml401/xparameters.h
index becafc8..d805061 100644
--- a/board/xilinx/ml401/xparameters.h
+++ b/board/xilinx/ml401/xparameters.h
@@ -41,8 +41,8 @@
 #define XILINX_TIMER_IRQ	0
 
 /* Uart pheriphery is RS232_Uart */
-#define XILINX_UART_BASEADDR	0x40600000
-#define XILINX_UART_BAUDRATE	115200
+#define XILINX_UARTLITE_BASEADDR	0x40600000
+#define XILINX_UARTLITE_BAUDRATE	115200
 
 /* IIC pheriphery is IIC_EEPROM */
 #define XILINX_IIC_0_BASEADDR	0x40800000