Matt Jacob 1d52a1ad42 Create a Node WWN from the *Port* WWN, not vice versa, for 2400s.
If the NAA is type 2, the Node WWN is the Port WWN with the 12 bits
of port (48..60) cleared. This iff a wwn fetched from NVRAM is zero.

MFC after:	1 week
2009-12-31 04:16:18 +00:00
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