mt renaming -- part 2

[Dave Brolley]

OK for the opcodes and SID portions. Also, consider the rename of the 
sid test directory to be pre-approved.

Thanks!
Dave

Nathan Sidwell wrote:

> This is the second part of renaming the ms1 target to mt.  This one 
> fixes all the  function, variable, type and #define names. It touches 
> binutils, opcodes, cpu, gdb & sid.  The newlib and gcc portions have 
> already been committed.
>
> As before please let me know which bits are being signed off on.  
> (Kevin, you preapproved the gdb changes, I'm ccing you as an FYI.)
>
> I've not renamed the sid test directory.  I'll do that next.
>
> nathan
>