--no-pic-executable alias to -no-pie

[Cary Coutant]

> I added option -no-pie to gold:
> https://sourceware.org/ml/binutils/2014-08/msg00104.html
>
> I am now making --no-pic-executable alias to -no-pie.
>
> Is this alright?

>        * options.h (--pic-executable): Add negative to alias to -no-pie

This is OK. Thanks.

-cary