docs/180743: [patch] ath(4): document AR93xx support

[pluknet at FreeBSD.org]

Synopsis: [patch] ath(4): document AR93xx support

State-Changed-From-To: open->closed
State-Changed-By: pluknet
State-Changed-When: Mon Jul 22 19:33:02 UTC 2013
State-Changed-Why: 
Committed.

http://www.freebsd.org/cgi/query-pr.cgi?pr=180743