ipq806x: add support for TP-Link Talon AD7200

[Bjørn Mork]

Bas Mevissen <abuse at basmevissen.nl> writes:

>> In addition,
>>  - each supported device serves as a template and example for
>>    similar devices, simplifying support for other products.
>
> It is not really an unique product. It looks like it was (just)
> created to be a showcase at CES2016.

This argument works both ways: If it isn't unique, then there is no
additional cost supporting the device.

But in this case, the minor difference is AD support.  Which makes it a
valuable example.  And another feature to check off as "supported" on
the OpenWrt brag list.


Bjørn