Fix dpkg/apt commands in tools/airship script

One of the first things the tools/airship utility script does is run
dpkg and apt. Because these commands were not being ran with sudo,
the airship script could only be ran as the root user. Adding sudo
so any user can run the tools/airship script.

Change-Id: Ia13321fcc7436931d82da274682bc700cf802d33

tools/airship

@@ -20,7 +20,7 @@ test -t 1 && test -t 0 && DEFAULT_TERM_OPTS='-it'
 : ${TERM_OPTS:=${DEFAULT_TERM_OPTS}}
 
 # Python YAML module required to read versions.yaml
-dpkg -s python3-yaml &> /dev/null || apt -y install python3-yaml
+sudo dpkg -s python3-yaml &> /dev/null || sudo apt -y install python3-yaml
 
 
 ENV_FILE=$(mktemp)