Add installation of xxd which is needed for generating SSID

builder/image-software.sh

@@ -111,6 +111,7 @@ i2c-tools \
 espeak espeak-data python3-espeak \
 ntpdate \
 mjpg-streamer \
+xxd \
 python3-dev \
 python3-systemd \
 python3-opencv \

builder/test/tests.sh

@@ -22,6 +22,7 @@ pip3 --version
 tcpdump --version
 monkey --version
 espeak --version
+xxd --version
 systemctl --version
 
 if [ -z $VM ]; then