[Replicant] Update WifiAdapter page (TL-WN722N v1)

[Tiberiu]

Hi,

Thank you for writing and maintaining a documentation page about
external WiFi adapter that work with Replicant without nonfree blobs.

https://redmine.replicant.us/projects/replicant/wiki/WifiAdapter

Could you please update "TP-Link TL-WN722N" to "TP-Link TL-WN722N v1",
since nowadays the market is full with v2 which has a different chipset
(Realtek) that requires nonfree blobs?

https://wikidevi.com/wiki/TP-LINK_TL-WN722N_v2

Thanks,
Tiberiu

P.S. The Technoethical N150 is guaranteed to ship the right version
(v1), that works with fully free systems.