NWAM and MII toxicity in build 123

Just a quick note.... we've discovered a problem where NWAM may not function if you have certain devices which use the "mii" module in build 123 of OpenSolaris. Hopefully the fix for this problem will be integrated today into build 124.

The problem is that NWAM won't see your wired "interfaces" as down, and as a result, won't default to using wireless.

Affected devices are afe, iprb, atge, dmfe and the yge beta test. The CR on this is CR 6880492. A webrev of the fix is available for the curious.

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