[patch] mep: *.cpu copyrights

[DJ Delorie]

> Works for me, although people may find it slightly confusing since that
> would be the only directory which flows from src to gcc.

Given how big src/cpu is, and that mep is the only chip that gcc even
knows about, "weird" will have to do ;-)

> Also, how hard would it be for gcc/cpu to be a partial copy of src/cpu?
> There are files in src/cpu which are irrelevant to gcc.  This is similar
> to the include directory, of course.

Yup, same as include.