ar71xx: add support for jjPlus JWAP230

jjPlus JWAP230 is based on Qualcomm Atheros QCA9558 + QCA8337.
Short specification:

- 720/600/200 MHz (CPU/DDR/AHB)
- 2x 10/100/1000 Mbps Ethernet
- 128 MB of RAM (DDR2)
- 16 MB of FLASH
- 3T3R 2.4 GHz with external PA (SST12LP15A), up to 28 dBm
- 3x MMCX connectors
- power input: 802.3at PoE or wide range DC (36-57 V)
- optional 802.3af PSE
- 1x mini-PCIe connector with PCIe, USB buses and SIM slot
- 1x mini-PCIe connector with PCIe bus
- 1x USB type-A connector
- 6x LED, 1x button (hardware reset)
- RS232 (MAX3223) and (E)JTAG headers

Default configuration:

- WAN on eth1 (RJ45 near LEDs with PoE input)
- LAN on eth0 (RJ45 near DC jack)
- left top LED set to be status LED
- all LEDs configurable form user space

Flash instruction (do it under U-Boot, using RS232):

1. tftp 0x80060000 lede-ar71xx-generic-jwap230-squashfs-sysupgrade.bin
2. erase 0x9f050000 +$filesize
3. cp.b $fileaddr 0x9f050000 $filesize
4. setenv bootcmd "bootm 0x9f050000"
5. saveenv && reset

Signed-off-by: Piotr Dymacz <pepe2k@gmail.com>

target/linux/ar71xx/base-files/etc/board.d/02_network

@@ -411,6 +411,12 @@ gl-ar300)
 		"0@eth1" "1:lan" "2:lan" "3:lan" "4:lan"
 	;;
 
+jwap230)
+	ucidef_set_interfaces_lan_wan "eth0" "eth1"
+	ucidef_add_switch "switch0" \
+		"0@eth0" "1:lan" "5:wan" "6@eth1"
+	;;
+
 wpj342)
 	ucidef_add_switch "switch0" \
 		"0@eth0" "1:lan" "2:wan"

target/linux/ar71xx/base-files/etc/diag.sh

@@ -158,6 +158,9 @@ get_status_led() {
 	ja76pf2)
 		status_led="jjplus:green:led1"
 		;;
+	jwap230)
+		status_led="jwap230:green:led1"
+		;;
 	ls-sr71)
 		status_led="ubnt:green:d22"
 		;;