ath79: add support for I-O DATA WN-AC1600DGR2

I-O DATA WN-AC1600DGR2 is a 2.4/5 GHz band 11ac router, based on
Qualcomm Atheros QCA9557.

Specification:

- Qualcomm Atheros QCA9557
- 128 MB of RAM
- 16 MB of Flash
- 2.4/5 GHz wifi
  - 2.4 GHz: 2T2R (SoC internal)
  - 5 GHz: 3T3R (QCA9880)
- 5x 10/100/1000 Mbps Ethernet
- 6x LEDs, 6x keys (4x buttons, 1x slide switch)
- UART header on PCB
  - Vcc, GND, TX, RX from ethernet port side
  - 115200n8

Flash instruction using factory image:

1. Connect the computer to the LAN port of WN-AC1600DGR2
2. Connect power cable to WN-AC1600DGR2 and turn on it
3. Access to "http://192.168.0.1/" and open firmware update page
("ファームウェア")
4. Select the OpenWrt factory image and click update ("更新") button
5. Wait ~150 seconds to complete flashing

Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com>

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

@@ -95,6 +95,17 @@ ath9k_patch_fw_mac_crc() {
 board=$(board_name)
 
 case "$FIRMWARE" in
+"ath9k-eeprom-ahb-18100000.wmac.bin")
+	case $board in
+	iodata,wn-ac1600dgr2)
+		ath9k_eeprom_extract "art" 4096 1088
+		ath9k_patch_fw_mac $(mtd_get_mac_ascii u-boot-env ethaddr) 2
+		;;
+	*)
+		ath9k_eeprom_die "board $board is not supported yet"
+		;;
+	esac
+	;;
 "ath9k-eeprom-pci-0000:00:00.0.bin")
 	case $board in
 	avm,fritz300e)

target/linux/ath79/base-files/etc/hotplug.d/firmware/11-ath10k-caldata

@@ -87,6 +87,10 @@ board=$(board_name)
 case "$FIRMWARE" in
 "ath10k/cal-pci-0000:00:00.0.bin")
 	case $board in
+	iodata,wn-ac1600dgr2)
+		ath10kcal_extract "art" 20480 2116
+		ath10kcal_patch_mac $(macaddr_add $(mtd_get_mac_ascii u-boot-env ethaddr) +1)
+		;;
 	ocedo,koala)
 		ath10kcal_extract "art" 20480 2116
 		ath10kcal_patch_mac $(mtd_get_mac_binary art 12)