/proc/cpuinfo change

Since McKinley is now officially known as "Itanium 2", I'd like to change the /proc/cpuinfo accordingly. That is, the family line would read:

family : Itanium 2

I don't know of any applications that are affected by this, but I thought it would be good to give a heads-up (I'm not planning to change any of the CONFIG options; that would be too much idle work).

	--david