[oe] Add Intel Core 2 machine support (prescott and nocona)

[Leon Woestenberg]

Hello,

I would like to add support for Intel's Core 2 processors, in both 32
and 64 bit mode.

I am wondering what namespace to use for the PACKAGE ARCHs?

Given all the options[*], I think "x86-prescott" and "x86_64-nocona"
are suitable:

x86_64-prescott= x86_32-core = x86_32-core2
x86_64-nocona = x86_64-core2

The naming is a bit to long to suite my taste, maybe prescott and
nocona are enough?

I would like some input on this before I commit anything and pollute
the namespace.

Regards,
-- 
Leon

[*]
http://gentoo-wiki.com/Safe_Cflags#Intel_Core_2_Duo.2FQuad_.2F_Xeon_51xx.2F53xx