[U-Boot] [RFD] store env size in env area (+ cookie + len)

[Reinhard Meyer]

Dear Wolfgang Denk,
>> You only need to change/rewrite those functions to store the environment
>> in any fashion you like...
> 
> Please spell "compatibility".

Hmm, I think all IBM(R) PC(R) USERS(R) have spelled that alot.
Where this lead to, everyone knows...
Though its nice that some Win95 Programs still run under Vista ;)

And who says the "different" storage could not be an
configuration option?

Reinhard