wifi updates - please test

[Juan Ramón Molina Menor]

> I've committed a bunch of changes from Andriy to -HEAD. This includes
> driver changes and stack changes.
>
> I'd appreciate some further testing of all of the changes so far
> before I start merging in the wpi changes and later net80211 transmit
> changes.
No issues here with iwm:

% dmesg -a | grep iwm
iwm0: <Intel Dual Band Wireless AC 7260> mem 0xf0500000-0xf0501fff at 
device 0.0 on pci3
iwm0: revision: 0x140, firmware 25.228 (API ver. 9)
iwm0: iwm_update_edca: called

Thanks!