ath79: add support for MikroTik RouterBOARD mAP lite

The MikroTik RouterBOARD mAPL-2nd (sold as mAP Lite) is a small
2.4 GHz 802.11b/g/n PoE-capable AP.

See https://mikrotik.com/product/RBmAPL-2nD for more info.

Specifications:
 - SoC: Qualcomm Atheros QCA9533
 - RAM: 64 MB
 - Storage: 16 MB NOR
 - Wireless: Atheros AR9531 (SoC) 802.11b/g/n 2x2:2, 1.5 dBi antenna
 - Ethernet: Atheros AR8229 (SoC), 1x 10/100 port, 802.3af/at PoE in
 - 4 user-controllable LEDs:
   · 1x power (green)
   · 1x user (green)
   · 1x lan (green)
   · 1x wlan (green)

Flashing:
 TFTP boot initramfs image and then perform sysupgrade. Follow common
 MikroTik procedure as in https://openwrt.org/toh/mikrotik/common.

Note: following 781d4bfb39
 The network setup avoids using the integrated switch and connects the
 single Ethernet port directly. This way, link speed (10/100 Mbps) is
 properly reported by eth0.

Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>

target/linux/ath79/mikrotik/base-files/etc/board.d/01_leds

@@ -6,7 +6,8 @@ board_config_update
 board=$(board_name)
 
 case "$board" in
-mikrotik,routerboard-lhg-2nd)
+mikrotik,routerboard-lhg-2nd|\
+mikrotik,routerboard-mapl-2nd)
 	ucidef_set_led_netdev "lan" "lan" "green:lan" "eth0"
 	;;
 mikrotik,routerboard-lhg-5nd)

target/linux/ath79/mikrotik/base-files/etc/board.d/02_network

@@ -17,6 +17,7 @@ ath79_setup_interfaces()
 	mikrotik,routerboard-912uag-2hpnd|\
 	mikrotik,routerboard-lhg-2nd|\
 	mikrotik,routerboard-lhg-5nd|\
+	mikrotik,routerboard-mapl-2nd|\
 	mikrotik,routerboard-sxt-5nd-r2|\
 	mikrotik,routerboard-wap-g-5hact2hnd|\
 	mikrotik,routerboard-wapr-2nd)
@@ -40,6 +41,7 @@ ath79_setup_macs()
 	mikrotik,routerboard-912uag-2hpnd|\
 	mikrotik,routerboard-lhg-2nd|\
 	mikrotik,routerboard-lhg-5nd|\
+	mikrotik,routerboard-mapl-2nd|\
 	mikrotik,routerboard-sxt-5nd-r2|\
 	mikrotik,routerboard-wap-g-5hact2hnd|\
 	mikrotik,routerboard-wapr-2nd)

target/linux/ath79/mikrotik/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom

@@ -30,6 +30,7 @@ case "$FIRMWARE" in
 	mikrotik,routerboard-wapr-2nd)
 		caldata_mikrotik_ath9k 0x1000 0x440 $(macaddr_add "$mac_base" 1)
 		;;
+	mikrotik,routerboard-mapl-2nd|\
 	mikrotik,routerboard-wap-g-5hact2hnd)
 		caldata_mikrotik_ath9k 0x1000 0x440 $(macaddr_add "$mac_base" 2)
 		;;