lanana: Add major/minor entries for PPC QE UART devices

[H. Peter Anvin]

Segher Boessenkool wrote:
>> Just allocate the four slots and we'll deal with
>> anything above this in custom products.
> 
> Another option is to use 46..49 for UARTs #0..3,
> and 192..195 for UARTs #4..7.
> 
> Or, perhaps better, use 46..49 for #0..3, and
> 192..199 for #0..7, handling the duplication in
> the driver; and deprecate the old range.

That sounds like more hassle than it's worth.  The discontinuous range 
may be annoying, but it isn't really a huge amount of code.

	-hpa