qemu_cortex_m3: fixed network connectivity

The wrong UART was set on for the qemu_cortex_m3 slip (uart pipe) device

Change-Id: If6d6af0f32ef02ccc559cd1fff90ea499cc378c4
Signed-off-by: Richard Peters <[email protected]>

Author: peters-r

arch/arm/soc/ti_lm3s6965/Kconfig.defconfig

@@ -68,7 +68,7 @@ config BLUETOOTH_UART_ON_DEV_NAME
 	default "UART_1" if BLUETOOTH_UART
 
 config UART_PIPE_ON_DEV_NAME
-	default "UART_2" if UART_PIPE
+	default "UART_1" if UART_PIPE
 
 config BLUETOOTH_MONITOR_ON_DEV_NAME
 	default "UART_2" if  BLUETOOTH_DEBUG_MONITOR