[Bug target/125891] Switch to `-mabi=ieeelongdouble` by default for PowerPC64LE

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125891

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
>GCC's default appears to still be ibm128

You can config gcc to default to ieee128 instead.