tty/powerpc: introduce the ePAPR embedded hypervisor byte channel driver

[Timur Tabi]

Greg KH wrote:
>> > 3) A tty driver, which is used to handle user-space input and output.  The
>> > byte channel used for the console is designated as the default tty.
>> > 
>> > Signed-off-by: Timur Tabi <timur at freescale.com>
> Doesn't apply at all to the tty-next tree, so I can't apply it here :(

I shall take care of that right now.

-- 
Timur Tabi
Linux kernel developer at Freescale