[PATCH 4/6] cmdline: Add cmdline support

[Andreas Kölbl]

At the moment I didn't implement smp functionality. I will implement it
directly after implementing SMP.

Am 01.08.2017 um 13:08 schrieb Sebastian Huber:
> Why can't you use_CPU_SMP_Get_current_processor() instead of
> bsp_get_boot_cpu().
> 
> Why do you have to use the linker command file to allocate memory for
> the command line?
> 
I thought, it would be a good idea to reserve memory for it on a defined
place. This should ensure that a misconfiguration leads to an error.