mvebu: use device-tree board detection

Convert whole target to Device Tree based board detection instead of
identifying devices by dts file name. With this we can drop mvebu.sh
translation script and rely on common method for model detection.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>

target/linux/mvebu/base-files/etc/uci-defaults/03_wireless

@@ -11,7 +11,7 @@
 board=$(board_name)
 
 case "$board" in
-armada-385-linksys-caiman|armada-385-linksys-cobra|armada-385-linksys-shelby|armada-385-linksys-venom|armada-xp-linksys-mamba)
+linksys,caiman|linksys,cobra|linksys,mamba|linksys,shelby|linksys,venom)
 	SKU=$(strings /dev/mtd3|sed -ne 's/^cert_region=//p')
 	WIFIMAC2G=$(macaddr_add $(cat /sys/class/net/eth0/address) +1)
 	WIFIMAC5G=$(macaddr_add $WIFIMAC2G +1)
@@ -34,7 +34,7 @@ armada-385-linksys-caiman|armada-385-linksys-cobra|armada-385-linksys-shelby|arm
 	esac
 
 	case "$board" in
-		armada-xp-linksys-mamba)
+		linksys,mamba)
 			WIFIMAC0=$WIFIMAC2G
 			WIFIMAC1=$WIFIMAC5G
 		;;

target/linux/mvebu/base-files/etc/uci-defaults/04_mambafan

@@ -8,7 +8,7 @@
 board=$(board_name)
 
 case "$board" in
-armada-xp-linksys-mamba)
+linksys,mamba)
 	# Set fan script execution in crontab
 	grep -s -q fan_ctrl.sh /etc/crontabs/root && exit 0