[Bug target/65369] [5 Regression] nettle test failure on powerpc64le-linux-gnu when built with -O3

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65369

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>it's enough to build the md4.c file with -O2.

I know there is an endian test in md4.c file to speed up md4.  Maybe the wrong
one is being selected.