[Bug target/81170] powerpc*-linux --enable-default-pie chooses incorrect startup files

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81170
Bug 81170 depends on bug 81523, which changed state.

Bug 81523 Summary: -static -pie behaves differently depending on if 
--enable-default-pie is used
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81523

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED