Mender (OTA updates) support for OpenWrt available

I have added Mender support, which is easily adaptable to any openwrt u-boot $ARCH:

Hye, is there any howto and more technical explanations, please ?

There is a very long thread @mendor documenting my implementation issues / learning curve. It, along with inspection and the provided scripts may help. Been so long since I visited this that would have to re-learn again. No time @present. Good luck.