Sat6: Time is synchronised

[jhutar]

https://github.com/boogiespook/sat6_healthCheck/blob/master/sat6_healthCheck.sh#L328-L337

function checkChronySynchronised {

    if [ $(chronyc sources | grep \* | wc -l) -eq 0 ]
    then
      printError "chronyd has no synchronised time source"
      remedialAction "wait for chrony to synchronise and check with 'chronyc sources list'"
    else
      printOK "chronyd is synchronised with a time server"
    fi
}