[Bug target/104984] Use hard-fp for libgcc single-floating-point routines

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104984

--- Comment #2 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
See libgcc/config/rs6000/t-e500v1-fp (which should have been removed along 
with associated configure logic when the powerpcspe port was removed, the 
cases using that file should no longer be reachable), for an example of a 
configuration using hardware floating point for single precision only.