[Bug debug/120738] ctf: use CTF_FP_LDOUBLE encoding for 128-bit floats

[bruce.mcculloch at oracle dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120738

--- Comment #5 from Bruce McCulloch <bruce.mcculloch at oracle dot com> ---
As of commit dac12bc2426d5b639ad2d62d0f447dd037227c91 to binutils, the proposed
behavior is currently in the spec.