[patch,rtems] Let rtems target default to c99-io-formats

[Jeff Johnston]

Ralf Corsepius wrote:
> Hi,
>
> RTEMS now uses c99-io-formats. Therefore we would like to see newlib
> default to it for *-rtems* targets.
>
> Patch enclosed below.
>
> Ralf
>
>   
Patch applied.

-- Jeff J.