[PATCH] powerpc: add new required termio functions

[Geoff Levand]

Michael Neuling wrote:
> The "tty: termios locking functions break with new termios type" patch
> (f629307c857c030d5a3dd777fee37c8bb395e171) breaks the powerpc compile.
> This adds the required API to asm-powerpc.
> 
> Signed-off-by: Michael Neuling <mikey at neuling.org>
> --
> This needs to go up for 2.6.23.
> 
> Should we really put these definitions in asm-generic/termios.h as I'm
> guessing other architectures are broken too?

I think it would be better to do so, as that is where we pickup the defs for
the original kernel_termios_to_user_termios and user_termios_to_kernel_termios.

-Geoff