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

[Timur Tabi]

Dan Malek wrote:

> Just allocate the four slots and we'll deal with
> anything above this in custom products. 

Assuming that this is the agreed-upon standard, should I arbitrarily restrict my driver to 
4 ports, or allow all 8?

I assume that if a driver already claims a particular major/minor combo, then when the 2nd 
driver calls uart_add_one_port(), that call will fail?

-- 
Timur Tabi
Linux Kernel Developer @ Freescale