Convert TNF licenses to new 2 clause variant

Sort SEE ALSO. Fix Dd argument. Remove intro(4) xref (page does not exist).

Add support for the Intel 80003 Gigabit Ethernet controller (found e.g.
in newer server chipsets) to wm(4), from the FreeBSD em(4) driver.
While there, add a few other Intel Ethernet controller that

Add support for the Intel 80003 Gigabit Ethernet controller (found e.g.
in newer server chipsets) to wm(4), from the FreeBSD em(4) driver.
While there, add a few other Intel Ethernet controller that should work
as is.
Properly update the RX error and TX collision counters.
Add ikphy(4), a driver for the Intel i82563 Kumeran 10/100/1000
Ethernet PHYs
(forgot to cvs add this file in previous commit; pointed out by Juan RP)

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