Set 'sane' settings on serial device before using

Change-Id: I3e629795c8ec9c49d7facc0e44298f9033c0a4ae

nexus-non-interactive-test.sh

diff --git a/nexus-non-interactive-test.sh b/nexus-non-interactive-test.sh
index 4f7ac01..93e1760 100755
--- a/nexus-non-interactive-test.sh
+++ b/nexus-non-interactive-test.sh
@@ -70,8 +70,8 @@
     echo "/dev/Nexus-FTDI-${NEXUS_ID}-MCU-UART appears to be busy"
 fi
 
-stty --file="/dev/Nexus-FTDI-${NEXUS_ID}-FPGA-UART" 115200
-stty --file="/dev/Nexus-CP210-FPGA-UART-${NEXUS_ID}" 115200
+stty --file="/dev/Nexus-FTDI-${NEXUS_ID}-FPGA-UART" sane 115200
+stty --file="/dev/Nexus-CP210-FPGA-UART-${NEXUS_ID}" sane 115200
 stty --file="/dev/Nexus-FTDI-${NEXUS_ID}-MCU-UART" 115200
 
 # Starting logging the UARTs