[Bug target/63260] [SH] fabs, fneg do not need fp-mode setting and do not use fpscr

[kkojima at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63260

--- Comment #5 from Kazumoto Kojima <kkojima at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #4)
> If the failures on my side go away after that, I'll commit
> the patch from comment #2, OK?

Please go ahead.