ar71xx: add kernel support for ZyXEL NBG 6716

With this patch OpenWRT supports the following on the ZyXEL NBG 6716:
-WiFi 2G (ath9k)
-WiFi 5G (ath10k)
-NAND flash
-2 Ethernet interfaces
-USB 2.0
-LEDs including switch
-reasonale defaults at first boot

Signed-off-by: André Valentin <avalentin@marcant.net>
Patchwork: http://patchwork.openwrt.org/patch/5101/
[juhosg:
  - rename and refresh kernel patch,
  - fix a few typos,
  - change button key codes,
  - use zyxel prefix in LED names]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40499 3c298f89-4303-0410-b956-a3cf2f4a3e73
ar71xx: add user-space support for the ZyXEL NBG6716 board

Signed-off-by: André Valentin <avalentin@marcant.net>
Patchwork: http://patchwork.openwrt.org/patch/5101/
[juhosg: use zyxel prefix in LED names]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40500 3c298f89-4303-0410-b956-a3cf2f4a3e73
uboot-envtools: add support for the ZyXEL NBG6716 board

Signed-off-by: André Valentin <avalentin@marcant.net>
Patchwork: http://patchwork.openwrt.org/patch/5101/
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40501 3c298f89-4303-0410-b956-a3cf2f4a3e73
ar71xx: add profile and build image for the ZyXEL NBG6716 board

Signed-off-by: André Valentin <avalentin@marcant.net>
Patchwork: http://patchwork.openwrt.org/patch/5101/
[juhosg: remove the non-existing zyxelnand subtarget specific stuff]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@40502 3c298f89-4303-0410-b956-a3cf2f4a3e73