HEADSUP: new ath+hal

[Sam Leffler]

I committed a new ath hal and driver mods last week.  The most 
noticeable change is support for "recent" parts.  With this version all 
currently shipping pci/cardbus products should be supported except for 
those based on the pre-11n MIMO part.  There are also new builds for 
sparc64, powerpc, and alpha (alpha is untested, the others are known to 
work).

I want to see this hal go into the 6.1 release so please let me know if 
you see any regressions.

	Sam