[c-nsp] sup2T software & release notes have hit

[Asbjorn Hojmark - Lists]

> XE is what the rumors told me the Sup2T would be based upon, but
> IOS versions like "12.2(50)SY" very much sound like IOS-trains.

It is IOS.

Sup2T will have IOS-XE Sometime Later(TM).

-A