Another patch for Hardy Heron

[Larry Finger]

Attached is a patch to fix at least some of the problems in Ubuntu Bug
#184600. It probably is not the complete answer as there seem to be a mixed
bag of problems in that thread.

What I do not understand is the problem with the BCM4312 that was reported at 
Bug #197959, and the reason that Colin reverted the original patch. No one 
has reported this specific problem with any BCM4312 cards on the bcm43xx 
mailing list. If der_vegi's card is a rev 2, then b43 was never loading 
before the original patch was applied. If it was a rev 1 card, then this 
patch should have had no effect. We have seen some 802.11a/b/g cards trying 
to switch bands based on scan requests from mac80211. This patch fixes that 
problem by disabling the A PHY, which is not implemented anyway.

If you know how to contact der_vegi, it would probably be best to see if this 
patch has any adverse effect on his system. If it does, I certainly would 
like to see the diagnostics for his card.

Thanks,

Larry

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