Blackfin: drop unused MMR defines that only cause bad code to be written

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/mach-bf533/dma.c b/arch/blackfin/mach-bf533/dma.c
index 0a6eb8f..7a443c3 100644
--- a/arch/blackfin/mach-bf533/dma.c
+++ b/arch/blackfin/mach-bf533/dma.c
@@ -76,12 +76,12 @@
 		ret_irq = IRQ_SPI;
 		break;
 
-	case CH_UART_RX:
-		ret_irq = IRQ_UART_RX;
+	case CH_UART0_RX:
+		ret_irq = IRQ_UART0_RX;
 		break;
 
-	case CH_UART_TX:
-		ret_irq = IRQ_UART_TX;
+	case CH_UART0_TX:
+		ret_irq = IRQ_UART0_TX;
 		break;
 
 	case CH_MEM_STREAM0_SRC: