Detect wlan in descending order

This assumes that there might be the default proprietary wlan on a low number and an Atheros dongle on a higher number

src/freedombone-mesh-batman

@@ -72,13 +72,13 @@ IFACE='wlan0'
 EIFACE=eth0
 
 if [[ $IFACE == "wlan0" ]]; then
-    if grep -q "wlan1" /proc/net/dev; then
-        IFACE=wlan1
+    if grep -q "wlan5" /proc/net/dev; then
+        IFACE=wlan5
     fi
 fi
 if [[ $IFACE == "wlan0" ]]; then
-    if grep -q "wlan2" /proc/net/dev; then
-        IFACE=wlan2
+    if grep -q "wlan4" /proc/net/dev; then
+        IFACE=wlan4
     fi
 fi
 if [[ $IFACE == "wlan0" ]]; then
@@ -86,6 +86,16 @@ if [[ $IFACE == "wlan0" ]]; then
         IFACE=wlan3
     fi
 fi
+if [[ $IFACE == "wlan0" ]]; then
+    if grep -q "wlan2" /proc/net/dev; then
+        IFACE=wlan2
+    fi
+fi
+if [[ $IFACE == "wlan0" ]]; then
+    if grep -q "wlan1" /proc/net/dev; then
+        IFACE=wlan1
+    fi
+fi
 
 if [ -e /etc/default/batctl ]; then
     . /etc/default/batctl