[PATCH] uart: make *_UART_NR platform independent

[Wolfram Sang]

>  > I start to wonder if it makes sense to do such kind of work before
> the RTOS comes along?
>
> Indeed, good question ...

Having thought about this issue every now and then, I currently feel 
more tempted to port the g2-loader to NuttX, just to have it tried and 
see how that ends up. Working on the current bare metal-infrastructure 
for multi-platform feels like a dead end somehow.

    Wolfram

PS: I'll be in Berlin for LinuxTag from Wed to Sat. So, if somebody is 
interested to meet somewhen/somewhere and chat about RTOS/infrastructure 
(or just chat ;)), I am all for it!