ath79: add support for devolo WiFi pro 1200i

Hardware
--------
CPU:   Qualcomm Atheros QCA9558
RAM:   128M DDR2
FLASH: 16MiB
ETH:   1x Atheros AR8035 (PoE in)
WiFi2: QCA9558 2T2R
WiFi5: QCA9880 2T2R
BTN:   1x Reset
LED:   1x LED blue
       1x LED red
BEEP:  1x GPIO attached piezo beeper
UART:  3.3V GND TX RX (115200-N-8) (3.3V is square pad)
       Header is located next to reset-button

Installation
------------
Make sure you set a password for the root user as prompted on first
setup!

1. Upload OpenWRT sysupgrade image via SSH to the device.
Use /tmp as the destination folder on the device.
User is root, password the one set in the web interface.

2. Install OpenWRT with

> sysupgrade -n -F /tmp/<openwrt-image-name>

Signed-off-by: David Bauer <mail@david-bauer.net>

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

@@ -10,6 +10,7 @@ ath79_setup_interfaces()
 
 	case "$board" in
 	avm,fritz300e|\
+	devolo,dvl1200i|\
 	devolo,dvl1750c|\
 	devolo,dvl1750i|\
 	ocedo,koala|\

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

@@ -88,6 +88,7 @@ case "$FIRMWARE" in
 "ath10k/cal-pci-0000:00:00.0.bin")
 	case $board in
 	devolo,dvl1200e|\
+	devolo,dvl1200i|\
 	devolo,dvl1750c|\
 	devolo,dvl1750i)
 		ath10kcal_extract "art" 20480 2116