lantiq: use default leds defined in DTS

Remove all now double defined leds from the led board file. Use pppoe
as default for all broadband connections, since it's the default in
OpenWrt now.

Rename the the wifi leds to make sure, the not applicable default
values get overwritten.

Signed-off-by: Mathias Kresin <openwrt@kresin.me>

SVN-Revision: 48038

target/linux/lantiq/base-files/lib/functions/lantiq.sh

@@ -27,3 +27,19 @@ lantiq_board_name() {
 
 	echo "$name"
 }
+
+lantiq_is_dt_led_chosen() {
+	[ -f "/sys/firmware/devicetree/base/chosen/leds/$1" ] && echo "true"
+}
+
+lantiq_get_dt_led_chosen() {
+	local label
+	local nodepath
+	local basepath="/sys/firmware/devicetree/base"
+	local chosenpath="$basepath/chosen/leds/$1"
+
+	[ -f "$chosenpath" ] && nodepath=$(cat "$chosenpath")
+	[ -n "$nodepath" ] && label=$(cat "$basepath$nodepath/label")
+
+	echo "$label"
+}