Update wifi config

src/freedombone-utils-wifi

         rm -f $WIFI_CONFIG
     fi
 
+    echo 'update_config=1' > $WIFI_CONFIG
+    echo '' >> $WIFI_CONFIG
+
     ctr=0
     while read -r line
     do

src/freedombone-wifi

 
 if [ -f ${WIFI_NETWORKS_FILE} ]; then
     networks_from_file
-    ifconfig ${WIFI_INTERFACE} up
     wpa_cli status
     exit 0
 fi