Removed 'unicode' keyword from pkgconfig.py

[Chris Johns]

On 26/9/20 8:13 am, Stephen Clark wrote:
> I have attached a patch to remove the use of the ‘unicode’ keyword from the
> pkgconfig.py file.
> 
> This addresses #4094, where this same patch has been attached.
> 
> I was able to run the sb-set-builder script on the master, so I don’t believe
> this problem exists on that branch.

Thanks and congratulations on your first patch to RTEMS.

I have pushed it to 5 and a modified version to master. I had hacked a fix to
master in August but your fix is nicer.

Chris