[PATCH 07/19] Add PRU ELF ID to elfcpp

[Cary Coutant]

>> elfcpp/
>>       * elfcpp.h EM): Add EM_PRU.
>
> I think you should omit this from elfcpp/ until/if you contribute a
> gold port.

We have quite a few EM codes in elfcpp/ that do not have gold ports.
In general, I'd like to keep the definitions there as up to date as is
practical.

But note Joseph Myers' comment about the name (EM_PRU vs. EM_TI_PRU).

-cary