[U-Boot] use of C99

[Timur Tabi]

Premi, Sanjeev wrote:

> Maybe for sometime the usage seems contained. Until someone decides to have
> both the COOL and HOT feature.

And that's why I said that U-Boot can allow in-function variable
declarations, but all variables must have unique names.  The only
exception to that rule can be variables declared at the top of iterators.

That's just my two cents.

-- 
Timur Tabi
Linux kernel developer at Freescale